[coreboot] Last known good for Serengeti Cheetah

[Myles Watson]

I'm seeing a triple fault after jumping to the payload.  Does anyone
know of a Kconfig revision that works for Serengeti Cheetah?

As a related question: How hard would it be to add Qemu and SimNOW to
the test infrastructure that we have, so that at least those too
"boards" get boot tested at commit times?

Thanks,
Myles