[coreboot] Intel P35/Q35/G33/Q33/G31/P31

[Loïc Grenié]

Sorry for the forgotten patch !

Here is a patch for inteltool to print the registers values
 for the P31..Q35 chipset. The registers are (as far as I
 can tell) unchanged with respect to those of the PM965.
 I've no strong ideas on the names: I've chosen
 PCI_DEVICE_ID_INTEL_82G33 as Northbridge name, it
 can obviously be changed to anything else. I've given
 "P35/Q35/G33/Q33/G31/P31" as description, it can also
 be freely changed.

Please consider for applying,

Thanks,

Loïc