Reset Multiboot 2 support. New loader implements the draft in
/branches/multiboot2 and shares as much code as possible with the
production Multiboot 1 implementation.
* loader/ieee1275/multiboot2.c: Remove file. Update all users.
* loader/multiboot2.c: Likewise.
* loader/i386/multiboot_helper.S: Likewise.
* include/multiboot2.h: Replace with latest version from the draft
in /branches/multiboot2.
* conf/i386-coreboot.rmk (multiboot_mod_SOURCES): Remove
`loader/i386/multiboot_helper.S', `loader/i386/pc/multiboot2.c'
and `loader/multiboot2.c'.
(pkglib_MODULES): Add `multiboot2.mod'.
(multiboot2_mod_SOURCES): New variable.
(multiboot2_mod_LDFLAGS): Likewise.
(multiboot2_mod_CFLAGS): Likewise. Define `GRUB_USE_MULTIBOOT2'.
* include/grub/multiboot.h [GRUB_USE_MULTIBOOT2]: Include
`<multiboot2.h>' instead of `<multiboot.h>'.
[GRUB_USE_MULTIBOOT2] (MULTIBOOT_BOOTLOADER_MAGIC)
(MULTIBOOT_HEADER_MAGIC): New macros.
* loader/multiboot_loader.c (module_version_status): Remove variable.
(find_multi_boot2_header): Remove function.
(grub_cmd_multiboot_loader): Remove Multiboot 2 / Multiboot 1 selection
logic. Always check for the Multiboot version we're compiling for.
(grub_cmd_module_loader): Likewise.
[GRUB_USE_MULTIBOOT2] (GRUB_MOD_INIT(multiboot)): Register `multiboot2'
command instead of `multiboot'.