reinstate pci subvendor/subdevice detection so we can figure out which variant of the board we're attached to.
reinstate pci subvendor/subdevice detection so we can figure out which
variant of the board we're attached to.

for marco@

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars