sb/intel/i82801ix: drop IGD-related NVS variables
NDID/DID entries are no longer used by the GMA SSDT generator, so
drop them. SSDT generation will be simplified in a subsequent commit.
Remove direct setting of gnvs->ndid in qemu-q35 board since build
will otherwise break.
Change-Id: Ifbf08f43291c1fff7ccbc85272dc97334207983b
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39954
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>