Add missing const qualifiers.

* grub-core/commands/i386/pc/sendkey.c (keysym): Add missing const.
	* grub-core/commands/lspci.c (grub_pci_classname): Likewise.
	* grub-core/commands/menuentry.c (hotkey_aliases): Likewise.
	* grub-core/disk/lvm.c (grub_lvm_getvalue): Likewise.
	(grub_lvm_check_flag): Likewise.
	* grub-core/efiemu/i386/coredetect.c
	(grub_efiemu_get_default_core_name): Likewise
	* grub-core/efiemu/main.c (grub_efiemu_autocore): Likewise.
	* grub-core/fs/hfsplus.c (grub_hfsplus_catkey_internal): Likewise.
	* grub-core/fs/ntfs.c (fixup): Likewise.
	* grub-core/fs/xfs.c (grub_xfs_iterate_dir): Likewise.
	* grub-core/fs/zfs/zfs.c (decomp_entry): Likewise.
	(fzap_lookup): Likewise.
	(zap_lookup): Likewise.
	* grub-core/gnulib/regcomp.c (init_dfa): Likewise.
	* grub-core/lib/legacy_parse.c (check_option): Likewise.
	* grub-core/lib/posix_wrap/langinfo.h (nl_langinfo): Likewise.
	* grub-core/loader/i386/bsd.c (grub_bsd_add_meta): Likewise.
	(grub_freebsd_add_meta_module): Likewise.
	(grub_cmd_freebsd_module): Likewise.
	* grub-core/loader/i386/xnu.c (tbl_alias): Likewise.
	* grub-core/loader/xnu.c (grub_xnu_register_memory): Likewise.
	(grub_xnu_writetree_get_size): Likewise.
	(grub_xnu_writetree_toheap_real): Likewise.
	(grub_xnu_find_key): Likewise.
	(grub_xnu_create_key): Likewise.
	(grub_xnu_create_value): Likewise.
	(grub_xnu_register_memory): Likewise.
	(grub_xnu_check_os_bundle_required): Likewise.
	(grub_xnu_scan_dir_for_kexts): Likewise.
	(grub_xnu_load_kext_from_dir): Likewise.
	* grub-core/normal/color.c (color_list): Likewise.
	* grub-core/normal/completion.c (current_word): Likewise.
	* grub-core/normal/menu_entry.c (insert_string): Likewise.
	* grub-core/term/serial.c (grub_serial_find): Likewise.
	* grub-core/term/tparm.c (grub_terminfo_tparm): Likewise.
	* include/grub/efiemu/efiemu.h (grub_efiemu_get_default_core_name):
	Likewise.
	* include/grub/i386/bsd.h (grub_bsd_add_meta): Likewise.
	(grub_freebsd_add_meta_module): Likewise.
	* include/grub/lib/arg.h (grub_arg_option): Likewise.
	* include/grub/net.h (grub_net_card_driver): Likewise.
	(grub_net_card): Likewise.
	(grub_net_app_protocol): Likewise.
	* include/grub/parttool.h (grub_parttool_argdesc): Likewise.
	* include/grub/serial.h (grub_serial_find): Likewise.
	* include/grub/tparm.h (grub_terminfo_tparm): Likewise.
	* include/grub/xnu.h (grub_xnu_create_key): Likewise.
	(grub_xnu_create_value): Likewise.
	(grub_xnu_find_key): Likewise.
	(grub_xnu_scan_dir_for_kexts): Likewise.
	(grub_xnu_load_kext_from_dir): Likewise.

	* include/grub/zfs/zio_checksum.h (zio_checksum_t): Moved from here ...
	* grub-core/fs/zfs/zfs.c (zio_checksum_t): ...here.
	* include/grub/zfs/zio_checksum.h (zio_checksum_info):
	Moved from here ...
	* grub-core/fs/zfs/zfs.c (zio_checksum_info): ... here. Added missing const.

grub-core/loader/xnu.c

@@ -50,7 +50,7 @@ grub_size_t grub_xnu_heap_size = 0;
 struct grub_relocator *grub_xnu_relocator;
 
 static grub_err_t
-grub_xnu_register_memory (char *prefix, int *suffix,
+grub_xnu_register_memory (const char *prefix, int *suffix,
 			  grub_addr_t addr, grub_size_t size);
 grub_err_t
 grub_xnu_heap_malloc (int size, void **src, grub_addr_t *target)
@@ -103,7 +103,8 @@ grub_xnu_free_devtree (struct grub_xnu_devtree_key *cur)
 
 /* Compute the size of device tree in xnu format. */
 static grub_size_t
-grub_xnu_writetree_get_size (struct grub_xnu_devtree_key *start, char *name)
+grub_xnu_writetree_get_size (struct grub_xnu_devtree_key *start,
+			     const char *name)
 {
   grub_size_t ret;
   struct grub_xnu_devtree_key *cur;
@@ -134,7 +135,8 @@ grub_xnu_writetree_get_size (struct grub_xnu_devtree_key *start, char *name)
 /* Write devtree in XNU format at curptr assuming the head is named NAME.*/
 static void *
 grub_xnu_writetree_toheap_real (void *curptr,
-				struct grub_xnu_devtree_key *start, char *name)
+				struct grub_xnu_devtree_key *start,
+				const char *name)
 {
   struct grub_xnu_devtree_key *cur;
   int nkeys = 0, nvals = 0;
@@ -249,7 +251,7 @@ grub_xnu_writetree_toheap (grub_addr_t *target, grub_size_t *size)
 
 /* Find a key or value in parent key. */
 struct grub_xnu_devtree_key *
-grub_xnu_find_key (struct grub_xnu_devtree_key *parent, char *name)
+grub_xnu_find_key (struct grub_xnu_devtree_key *parent, const char *name)
 {
   struct grub_xnu_devtree_key *cur;
   for (cur = parent; cur; cur = cur->next)
@@ -259,7 +261,7 @@ grub_xnu_find_key (struct grub_xnu_devtree_key *parent, char *name)
 }
 
 struct grub_xnu_devtree_key *
-grub_xnu_create_key (struct grub_xnu_devtree_key **parent, char *name)
+grub_xnu_create_key (struct grub_xnu_devtree_key **parent, const char *name)
 {
   struct grub_xnu_devtree_key *ret;
   ret = grub_xnu_find_key (*parent, name);
@@ -285,7 +287,7 @@ grub_xnu_create_key (struct grub_xnu_devtree_key **parent, char *name)
 }
 
 struct grub_xnu_devtree_key *
-grub_xnu_create_value (struct grub_xnu_devtree_key **parent, char *name)
+grub_xnu_create_value (struct grub_xnu_devtree_key **parent, const char *name)
 {
   struct grub_xnu_devtree_key *ret;
   ret = grub_xnu_find_key (*parent, name);
@@ -562,7 +564,7 @@ grub_cmd_xnu_kernel64 (grub_command_t cmd __attribute__ ((unused)),
 /* Register a memory in a memory map under name PREFIXSUFFIX
    and increment SUFFIX. */
 static grub_err_t
-grub_xnu_register_memory (char *prefix, int *suffix,
+grub_xnu_register_memory (const char *prefix, int *suffix,
 			  grub_addr_t addr, grub_size_t size)
 {
   struct grub_xnu_devtree_key *chosen;
@@ -918,7 +920,8 @@ grub_cmd_xnu_ramdisk (grub_command_t cmd __attribute__ ((unused)),
 /* Returns true if the kext should be loaded according to plist
    and osbundlereq. Also fill BINNAME. */
 static int
-grub_xnu_check_os_bundle_required (char *plistname, char *osbundlereq,
+grub_xnu_check_os_bundle_required (char *plistname,
+				   const char *osbundlereq,
 				   char **binname)
 {
   grub_file_t file;
@@ -1033,7 +1036,7 @@ grub_xnu_check_os_bundle_required (char *plistname, char *osbundlereq,
 
 /* Load all loadable kexts placed under DIRNAME and matching OSBUNDLEREQUIRED */
 grub_err_t
-grub_xnu_scan_dir_for_kexts (char *dirname, char *osbundlerequired,
+grub_xnu_scan_dir_for_kexts (char *dirname, const char *osbundlerequired,
 			     int maxrecursion)
 {
   grub_device_t dev;
@@ -1099,7 +1102,7 @@ grub_xnu_scan_dir_for_kexts (char *dirname, char *osbundlerequired,
 
 /* Load extension DIRNAME. (extensions are directories in xnu) */
 grub_err_t
-grub_xnu_load_kext_from_dir (char *dirname, char *osbundlerequired,
+grub_xnu_load_kext_from_dir (char *dirname, const char *osbundlerequired,
 			     int maxrecursion)
 {
   grub_device_t dev;