Remove redundant declaration.
	(grub_mmap_get_post64): Likewise.
	(grub_mmap_get_upper): Likewise.
	(grub_mmap_get_lower): Likewise.

	EXPORT_FUNC.
	Reported by: Seth Goldberg.

	Mmap services

	* loader/i386/efi/linux.c (grub_linux_boot): use grub_mmap_iterate
	* loader/i386/linux.c (find_mmap_size): likewise
	(allocate_pages): likewise
	* loader/i386/multiboot.c (grub_get_multiboot_mmap_len): likewise
	(grub_fill_multiboot_mmap): likewise
	(grub_multiboot): use grub_mmap_get_lower and grub_mmap_get_upper
	* loader/i386/pc/linux.c (grub_cmd_linux): use grub_mmap_get_lower
	* include/grub/i386/bsd.h (OPENBSD_MMAP_AVAILABLE): new definition
	(OPENBSD_MMAP_RESERVED): likewise
	* include/grub/i386/pc/memory.h: include grub/memory.h
	(grub_lower_mem): removed
	(grub_upper_mem): likewise
	(GRUB_MACHINE_MEMORY_ACPI): new definition
	(GRUB_MACHINE_MEMORY_NVS): likewise
	(GRUB_MACHINE_MEMORY_MAX_TYPE): likewise
	(GRUB_MACHINE_MEMORY_HOLE): likewise
	(grub_machine_mmap_register): likewise
	(grub_machine_mmap_unregister): likewise
	(grub_machine_get_upper): likewise
	(grub_machine_get_lower): likewise
	(grub_machine_get_post64): likewise
	* include/grub/i386/efi/memory.h: new file
	* include/grub/x86_64/efi/memory.h: likewise
	* include/grub/efi/memory.h: likewise
	* conf/i386-pc.rmk (pkglib_MODULES): added mmap.mod
	(mmap_mod_SOURCES): new variable
	(mmap_mod_LDFLAGS): likewise
	(mmap_mod_ASFLAGS): likewise
	* conf/i386-coreboot.rmk: likewise
	* conf/i386-ieee1275.rmk: likewise
	* conf/i386-efi.rmk: likewise
	* conf/x86_64-efi.rmk: likewise
	* include/grub/types.h (UINT_TO_PTR): new macro
	(PTR_TO_UINT32): likewise
	(PTR_TO_UINT64): likewise
	* include/grub/memory.h: new file
	* mmap/i386/pc/mmap.c: likewise
	* mmap/i386/pc/mmap_helper.S: likewise
	* mmap/i386/uppermem.c: likewise
	* mmap/mmap.c: likewise
	* mmap/efi/mmap.c: likewise
	* kern/i386/coreboot/init.c (grub_machine_init): don't use 
	grub_upper_mem
	* kern/i386/pc/init.c (grub_lower_mem): removed variable
	(grub_upper_mem): likewise
	(grub_machine_init): don't use grub_upper_mem,
	make grub_lower_mem local
	* loader/i386/bsd.c (grub_openbsd_boot): use grub_mmap_get_lower,
	grub_mmap_iterate and grub_mmap_get_upper
	(grub_netbsd_boot): use grub_mmap_get_lower and grub_mmap_get_upper