* disk/powerpc/ieee1275/ofdisk.c (grub_ofdisk_open): dprintf the
device path and resulting ihandle.
(grub_ofdisk_close): dprintf the ihandle being closed.
(grub_ofdisk_read): dprintf function parameters.
* kern/mm.c (grub_mm_init_region): Likewise.
* loader/powerpc/ieee1275/linux.c: Remove extra whitespace.
(grub_linux_boot): dprintf the Linux entry point, initrd address and
size, and boot arguments.
(grub_rescue_cmd_linux): dprintf each ELF segment's address and size
before loading into memory.
(grub_rescue_cmd_initrd): dprintf the initrd's address and size
before loading into memory.