add "82452KX/GX Orion Extended Express Processor to PCI Bridge", from NetBSD.
add "82452KX/GX Orion Extended Express Processor to PCI Bridge", from NetBSD.

ok mbalmer@

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