[L] Change in coreboot[master]: mb/google/rex: Initial setup for gpio config

[YH Lin (Code Review)]

Attention is currently required from: Tarun Tuli, Subrata Banik, Kapil Porwal, Kun Liu.

YH Lin has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/74475 )

Change subject: mb/google/rex: Initial setup for gpio config
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Patch Set 3:

(3 comments)

File src/mainboard/google/rex/variants/screebo/gpio.c:

https://review.coreboot.org/c/coreboot/+/74475/comment/967b8da8_a0518a37 
PS3, Line 153:     
nit: tab

https://review.coreboot.org/c/coreboot/+/74475/comment/bc28510e_4a808f29 
PS3, Line 205:     
ditto

https://review.coreboot.org/c/coreboot/+/74475/comment/dbeb1259_c0e32493 
PS3, Line 247:     
ditto