Change in coreboot[master]: mb/google/corsola: initialize krabby display

[Rex-BC Chen (Code Review)]

Attention is currently required from: Hung-Te Lin, Yu-Ping Wu.
Hello Hung-Te Lin, Yu-Ping Wu,

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

https://review.coreboot.org/c/coreboot/+/60447

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

Change subject: mb/google/corsola: initialize krabby display
......................................................................

mb/google/corsola: initialize krabby display

PS8640 is used on Krabby board as the eDP bridge IC. Enable PS8640
and configure display in mainboard_init() to support display in
firmware screen.

BUG=b:210806060
TEST=saw firmware display on eDP panel of krabby and kingler.

Signed-off-by: Rex-BC Chen 
Change-Id: I314d5407c40429bb7bc50f36fece58e396b27548
---
M src/mainboard/google/corsola/Kconfig
M src/mainboard/google/corsola/display.c
M src/mainboard/google/corsola/display.h
3 files changed, 93 insertions(+), 33 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/47/60447/3