Correctly detect PCI bridges in multifunction devices.
Correctly detect PCI bridges in multifunction devices.

The high bit of the header type field indicates a mulitfunction device,
it's not part of the actual header type.

AugustusHuang/Mezzano,rvedam/Mezzano,froggey/Mezzano,varjagg/Mezzano,rvedam/Mezzano,varjagg/Mezzano,AugustusHuang/Mezzano,froggey/Mezzano