[coreboot] Romfs -> cbfs conversion

[Myles Watson]

Peter,

Do you still have any outstanding patches?  It looks like there are
still many references to romfs in src/lib/.

I also get this in the output of make:

rm -f coreboot.cbfs
./cbfstool ./coreboot.romfs create 524288 65536 ./coreboot.rom.bootblock
(cbfstool) E: ./coreboot.romfs already exists - cannot create
make: *** [coreboot.romfs] Error 255
make: Leaving directory
`/home/myles/buildrom-devel/work/coreboot/svn/targets/emulation/qemu-x86/qemu-x86'

Thanks,
Myles