[S] Change in coreboot[main]: mb/google/rauru: Support the panel with a load switch control

[Yidi Lin (Code Review)]

Attention is currently required from: Hung-Te Lin, Paul Menzel, Yidi Lin.

Hello Hung-Te Lin, Paul Menzel, Yu-Ping Wu, build bot (Jenkins),

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

https://review.coreboot.org/c/coreboot/+/86282?usp=email

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

The following approvals got outdated and were removed:
Code-Review+1 by Paul Menzel, Verified+1 by build bot (Jenkins)

Change subject: mb/google/rauru: Support the panel with a load switch control
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mb/google/rauru: Support the panel with a load switch control

The Rauru follower device goes `load switch` path to ensure the
discharge timing meets the panel power-off sequence. Refactor panel.c to
support this hardware change.

Remove PANEL from fw_config since this is a board-specific change.

BRANCH=rauru
BUG=b:339580836
TEST=verify firmware screen on Navi

Change-Id: I57dcaa2a0b5af94fe3fa3eaf04e9f3159c51d144
Signed-off-by: Yidi Lin 
---
M src/mainboard/google/rauru/devicetree.cb
M src/mainboard/google/rauru/panel.c
2 files changed, 7 insertions(+), 14 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/82/86282/3