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

[Loïc Grenié]

   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