[coreboot] legacy bios support and coreboot

[bari]

aaron lwe wrote:
> Cool. BTW, for via epia-cn, vgabios is not run by emulator, but by
> switching back to real mode and call the rom code. I think this is the
> same way legacybios did. Maybe we can have a config option to let
> coreboot know when we are using legacybios we can omit runnning pci
> roms and let legacybios takes care, but when using other payloads, the
> pci rom code should still be run by emulator or vm86.
>
>   
Do you have a working version of coreboot for the epia-cn?

-Bari