gma ddi: Don't try to disable non-existent DDI D

Didn't hurt on Haswell-/Broadwell-U, but did lock up Broxton.

Change-Id: I6a47d0fba8cb6e59d8ace1ab64eed6182769a37b
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/18420
Tested-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
3 files changed
tree: 35e13c7864a7472221d1c3c72bda06d37c31bff2
  1. common/
  2. configs/
  3. .gitignore
  4. COPYING
  5. Makefile
  6. Makefile.inc
  7. TODO