* include/multiboot.h: Remove `<grub/types.h>'. (multiboot_uint16_t, multiboot_uint32_t, multiboot_uint64_t): New types. Update all users.
* include/multiboot.h: Remove `<grub/types.h>'. (multiboot_uint16_t, multiboot_uint32_t, multiboot_uint64_t): New types. Update all users.