Add code to set up windows on PCI-PCI bridges left unconfigured by the firmware.  Fixes some (laptop) machines with ethernet and/or wiireless behind a bridge.  Some help from miod@.  Tested by many.
Add code to set up windows on PCI-PCI bridges left unconfigured by the
firmware.  Fixes some (laptop) machines with ethernet and/or wiireless
behind a bridge.  Some help from miod@.  Tested by many.

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