[XS] Change in coreboot[main]: mb/google/brox: Enable PMC pins to work with PD

[Eric Lai (Code Review)]

Attention is currently required from: Ashish Kumar Mishra, Deepti Deshatty, Shelley Chen, Vijay P Hiremath.

Eric Lai has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/81207?usp=email )

Change subject: mb/google/brox: Enable PMC pins to work with PD
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Patch Set 2:

(3 comments)

File src/mainboard/google/brox/variants/baseboard/brox/gpio.c:

https://review.coreboot.org/c/coreboot/+/81207/comment/011e3c47_ed84cfda :
PS2, Line 105: NC
should remove NC?

https://review.coreboot.org/c/coreboot/+/81207/comment/e9686872_df850953 :
PS2, Line 137: NC
same

https://review.coreboot.org/c/coreboot/+/81207/comment/20613abe_db95787d :
PS2, Line 139: NC
same