Change in coreboot[master]: Google/Nipperkin: Add board specific values for eDP tuning

[Bao Zheng (Code Review)]

Attention is currently required from: Paul Menzel, Zheng Bao.
Hello build bot (Jenkins), Zheng Bao,

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

https://review.coreboot.org/c/coreboot/+/59919

to look at the new patch set (#4).

Change subject: Google/Nipperkin: Add board specific values for eDP tuning
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Google/Nipperkin: Add board specific values for eDP tuning

These values are got from experiment. The document can be got from the
issue tracker of this ticket.

BUG=b:203061533

Change-Id: I7aa8c594d9f5caa6b2523dac079aef89e623c56f
Signed-off-by: Zheng Bao 
---
M src/mainboard/google/guybrush/variants/nipperkin/overridetree.cb
1 file changed, 13 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/19/59919/4