Fix for bogus BIOS configuration of the 450NX PCI interface on some systems (eg. Dell 6300).
Fix for bogus BIOS configuration of the 450NX PCI interface on some
systems (eg. Dell 6300).

PR:		kern/8928
Submitted by:	David Malone <dwmalone@maths.tcd.ie>

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase