[coreboot] ADLO for buildrom

[Myles Watson]

This patch adds ADLO to buildrom using the gcc ported BOCHS BIOS.  It
boots Windows XP in QEMU.  It still needs as86 to be installed because
I didn't port the loader yet.  Other things like making the loader
understand the coreboot information to get the RAM map would be nice
too.

I'm attaching the ELF headers, since svn diff doesn't include binary files.

Signed-off-by: Myles Watson

Thanks,
Myles