[coreboot] [PATCH] Add K8T800, K8T800Pro*, and K8M800* support

[Alex G.]

Find attached a new version of my previous patch for the K8T800. In my
previous patch, I was worried that the .tblpointer could contain
incorrect values. I have hexdumped the image for the A8V-E SE (K8T8900
chipset), and it contains the correct values. The same applies to the
board I'm porting (with K8T800 chipset).

I remember someone on IRC asking about the previous patch for the
K8T800. I've added the PCI ID for the K8M800 VGA controller to the
K8M890 driver, so the VGA might work (TM) on the K8M800.

The code for the K8T800 works. The reason I'm not also putting up a
patch for the ASUS K8V-X SE is that IRQs are not (yet) working well for
this board.

Alex

*These northbridges have not been tested.