Change in coreboot[master]: mb/google/brya/var/baseboard/brask: Add power limits functions

[Alan Huang (Code Review)]

Attention is currently required from: Paul Menzel, Nick Vaccaro, Zhuohao Lee.
Hello build bot (Jenkins), Tim Wawrzynczak, Nick Vaccaro, Zhuohao Lee,

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

https://review.coreboot.org/c/coreboot/+/58241

to look at the new patch set (#18).

Change subject: mb/google/brya/var/baseboard/brask: Add power limits functions
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mb/google/brya/var/baseboard/brask: Add power limits functions

Copy function variant_update_power_limits from brya to set power limits.

Add function variant_update_psys_power_limits and copy the algorithm
from puff. Add structure system_power_limits and psys_config to define
and configure the psys power limits.

BUG=b:193864533
BRANCH=none
TEST=Build pass

Signed-off-by: Alan Huang 
Change-Id: I183017068e9c78acb9fa7073c53593d304ba9248
---
M src/mainboard/google/brya/variants/baseboard/brask/Makefile.inc
A src/mainboard/google/brya/variants/baseboard/brask/ramstage.c
M src/mainboard/google/brya/variants/baseboard/include/baseboard/variants.h
3 files changed, 191 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/41/58241/18