[coreboot] [v2] r4925 makes my linux hang

[Peter Stuge]

Config.lb_mahogany_k8
> chip southbridge/amd/rs780
> 	device pci 0.0 on end # HT  	0x9600
> 	device pci 1.0 on  # Internal Graphics P2P bridge 0x9602
> 		chip drivers/pci/onboard
> 			device pci 5.0 on end	# Internal Graphics 0x9615
> 			register "rom_address" = "0xfff00000"
> 		end
> 	end

I think onboard was removed, and also rom_address because CBFS can be
used to find the ROM.

I'm not sure how to best "decouple" the graphics device from the 780.


//Peter