Change in coreboot[master]: soc/intel/apollolake: Save/restore GMA OpRegion address

[Matt DeVillier (Code Review)]

Hello build bot (Jenkins), Nico Huber, Paul Menzel, Angel Pons, Andrey Petrov, Patrick Rudolph,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/25416

to look at the new patch set (#3).

Change subject: soc/intel/apollolake: Save/restore GMA OpRegion address
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soc/intel/apollolake: Save/restore GMA OpRegion address

Add global nvs variable required for IGD OpRegion.
Add functions necessary to save the ACPI OpRegion table
address in ASLB, and restore table address upon S3 resume.

Implementation modeled on existing Skylake code.

Change-Id: I4123998b0ab3c263c6a9ff14084a0d8808e5f4cd
Signed-off-by: Matt DeVillier 
---
M src/soc/intel/apollolake/acpi/globalnvs.asl
M src/soc/intel/apollolake/graphics.c
M src/soc/intel/apollolake/include/soc/nvs.h
3 files changed, 26 insertions(+), 5 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/16/25416/3