[M] Change in coreboot[master]: mb/google/rex: add variant gpio tables for variant creation

[YH Lin (Code Review)]

Attention is currently required from: YH Lin, Tarun Tuli, Subrata Banik, Kapil Porwal.

Hello build bot (Jenkins), Tarun Tuli, Subrata Banik, Kapil Porwal, Paul Fagerburg,

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

https://review.coreboot.org/c/coreboot/+/74257

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

Change subject: mb/google/rex: add variant gpio tables for variant creation
......................................................................

mb/google/rex: add variant gpio tables for variant creation

BUG=b:276818954
TEST=new_variant_fulltest.sh rex0
BRANCH=None

Signed-off-by: YH Lin 
Change-Id: Iebc098f8d480ac3e1835b00861fd844d97f281a8
---
M src/mainboard/google/rex/variants/baseboard/include/baseboard/variants.h
M src/mainboard/google/rex/variants/baseboard/rex/Makefile.inc
A src/mainboard/google/rex/variants/baseboard/rex/gpio.c
3 files changed, 58 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/57/74257/3