[coreboot] [PATCH] Drop drivers/pci/onboard

[Myles Watson]

PCI onboard was only used for ROM images at fixed offsets in flash.  Now
that we have CBFS, there is no use for it.

Fix qemu, since it is a special case where the ROM image ends up at 0xc0000
without any help from coreboot.

Signed-off-by: Myles Watson

Abuild tested.  Boot tested on qemu.

Thanks,
Myles