Those registers are only used on more recent Intel platforms featuring a
PCH. The DP registers on G4X hardware are at a different offset.
Change-Id: I4660e547426ccec0b2095d897e4a8c86e0acf41e
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/17111
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.h@gmx.de>