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

[Kevin Chiu (Code Review)]

Attention is currently required from: Bhanu Prakash Maiya, Rob Barnes, Eric Peers, Karthik Ramasubramanian.
Kevin Chiu has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/59051 )

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

(3 comments)

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

https://review.coreboot.org/c/coreboot/+/59051/comment/8ab25df0_5afa7bd3 
PS3, Line 39: 	/* EN_SPKR */
> Should disconnect baseboard EN_SPKR / GPIO_31

Done

https://review.coreboot.org/c/coreboot/+/59051/comment/649f751c_bf127fc4 
PS3, Line 40: 	PAD_GPO(GPIO_70, HIGH),
> Should sdmode_gpio in nipperkin/overridetree. […]

Done

https://review.coreboot.org/c/coreboot/+/59051/comment/ef985a70_c5beddf2 
PS3, Line 61: 	PAD_NC(GPIO_18),
> GPIO_70 is disconnected in baseboard pcie_gpio_table. Should connect here.

Done