asus p2b - successful erase and write

[Branden Waldner]

I got an asus p2b to go with my asus p2-99 for coreboot testing and it
works with flashrom.

Erase and write are reported as untested, so attached are logs of
flashing from the award bios and from coreboot. It reports failure
when trying erase function 0, but tries erase function 1 and works. It
also requires the this_is_not_a_laptop option to work with the award
bios.

I can do any further testing or supply logs if required.