[flashrom] Chipset enable for nVidia nForce4/MCP4.

[Luc Verhaegen]

Please test whether your board is matched correctly.

When the board enable gets provided, please apply that on top of this 
patch, and if both work correctly, reply to both mails with
Acked-by: Martin ##DeineRichtigeNachname##

Also, the pci id matched here is not in the pciids.sf.net database.
You might want to work with them to get your pciids in their list (my 
guess is that they need you to dig through some windows driver .inf 
files.)

Thanks,

Luc Verhaegen.