[LinuxBIOS] drop struct lb_uint64?

[Stefan Reinauer]

Hi,

what exactly is this structure good for?

declared in src/include/boot/linuxbios_tables.h:

struct lb_uint64 {
        uint32_t lo;
        uint32_t hi;
};

It is used in the following files:

src/arch/i386/boot/linuxbios_table.c
  src/arch/ppc/boot/linuxbios_table.c
  src/boot/elfboot.c

since each machine that can compile LinuxBIOS, ie that has a
(cross-)gcc, does have a uint64_t we should use that one.

Stefan