Change in coreboot[master]: mb/google/guybrush/var/guybrush: Update GPIO configuration

[Karthik Ramasubramanian (Code Review)]

Attention is currently required from: Raul Rangel, Furquan Shaikh, Martin Roth, Eric Peers.
Karthik Ramasubramanian has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/55148 )

Change subject: mb/google/guybrush/var/guybrush: Update GPIO configuration
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Patch Set 4:

(2 comments)

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

https://review.coreboot.org/c/coreboot/+/55148/comment/282f5363_e100d2fd 
PS3, Line 84: GPIO_70
> +1

Done

https://review.coreboot.org/c/coreboot/+/55148/comment/1d892a0c_739f211d 
PS3, Line 86: GPIO_74
> PAD_NC(GPIO_74)

Done