[M] Change in coreboot[master]: nb/intel/gm45: Export EDID-reading routine as a function

[Bill XIE (Code Review)]

Attention is currently required from: Arthur Heymans.

Hello build bot (Jenkins),

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

https://review.coreboot.org/c/coreboot/+/74180

to look at the new patch set (#5).

Change subject: nb/intel/gm45: Export EDID-reading routine as a function
......................................................................

nb/intel/gm45: Export EDID-reading routine as a function

It will cache decoded EDID string in a static array. If called more
than once, a pointer to the static array is directly returned, without
reading EDID again.

Signed-off-by: Bill XIE 
Change-Id: Ibdbe4d76f9b59e7ae83b60cda042c2d1c39827ca
---
M src/northbridge/intel/gm45/gm45.h
M src/northbridge/intel/gm45/gma.c
2 files changed, 50 insertions(+), 9 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/80/74180/5