e6e272b905
- Fix some especially bad style in the CIS BAR tuple parsing code. - activate Option ROMS correctly. - de-obfuscate the Option ROM image selection code. - Fix mis-interpretation of the PCI spec that prevented Option ROMs whose CIS section wasn't in the first image from working. - Fix mis-interpretation of the PCI spec that prevented CIS's mapped into MEMIO space from working at all. - Reject invalid CIS pointers. Reviewed by: imp