64-bit PCI

[Robert Swindells <rjs%fdy2.co.uk@localhost>]

In vga_pci_attach() in sys/dev/pci/vga_pci.c there is code to ignore
64-bit BARs if it has been built for a 32-bit platform.

Can anyone remember the reason for this ?

There are graphics cards that only have 64-bit BARs, if there is still
a good reason for not enabling them on say i386 then we may want to
provide a bit more detail in the error message to let users know that
they can't do much with the card.

Robert Swindells