Change in coreboot[master]: mb/google/guybrush/var/guybrush: Add FPMCU configration

[Ivy Jian (Code Review)]

Attention is currently required from: Furquan Shaikh, Ivy Jian.
Hello build bot (Jenkins), Furquan Shaikh, Patrick Georgi, Martin Roth, Mathew King, Bhanu Prakash Maiya, EricR Lai,

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

https://review.coreboot.org/c/coreboot/+/52181

to look at the new patch set (#20).

Change subject: mb/google/guybrush/var/guybrush: Add FPMCU configration
......................................................................

mb/google/guybrush/var/guybrush: Add FPMCU configration

Enable CRFP in devicetree and configure GPIOs.

BUG=b:182201937
BRANCH=None
TEST=Boot into OS and confirm FPMCU is responding.

Signed-off-by: Ivy Jian 
Change-Id: I7c56b0db193be6804d07c2f333445c2a1dbf9f59
---
M src/mainboard/google/guybrush/Kconfig
M src/mainboard/google/guybrush/bootblock.c
M src/mainboard/google/guybrush/variants/baseboard/Makefile.inc
M src/mainboard/google/guybrush/variants/baseboard/gpio.c
A src/mainboard/google/guybrush/variants/baseboard/helpers.c
M src/mainboard/google/guybrush/variants/baseboard/include/baseboard/variants.h
M src/mainboard/google/guybrush/variants/guybrush/overridetree.cb
7 files changed, 73 insertions(+), 2 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/81/52181/20