* include/grub/powerpc/ieee1275/ieee1275.h: Move ...
* include/grub/ieee1275/ieee1275.h: ... to here. All users updated.
Move `abort', `grub_reboot', and `grub_halt' prototypes ...
* include/grub/powerpc/ieee1275/kernel.h: ... to here.
* commands/ieee1275/halt.c: Include <grub/machine/kernel.h> instead
of <grub/machine/ieee1275.h>.
* commands/ieee1275/reboot.c: Likewise.
* boot/powerpc/ieee1275/ieee1275.c: Move ...
* kern/ieee1275.c: ... to here. All users updated. Change all
parameter structs to use new type `grub_ieee1275_cell_t'.
* term/powerpc/ieee1275/ofconsole.c: Move ...
* term/ieee1275/ofconsole.c: ... to here. All users updated.
* disk/powerpc/ieee1275/ofdisk.c: Move ...
* disk/ieee1275/ofdisk.c: ... to here. All users updated.
* boot/powerpc/ieee1275/cmain.c: Change `grub_ieee1275_entry_fn' type
to return int.
* include/grub/i386/pc/console.h: Move to include/grub/console.h.
Remove unused prototypes. All users updated.
* include/grub/powerpc/ieee1275/console.h: Removed.
* include/grub/powerpc/ieee1275/ieee1275.h: Define
`grub_ieee1275_cell_t'.
* kern/powerpc/ieee1275/openfw.c: Include <grub/machine/kernel.h>.
Cast comparisons with -1 to the correct type.
* loader/powerpc/ieee1275/linux.c (kernel_entry_t): Change parameter
type to match `grub_ieee1275_entry_fn'.
