[coreboot-gerrit] Change in coreboot[master]: mb/google/brya/var/banshee: Add mic mute switch setting

[Tim Wawrzynczak (Code Review)]

Attention is currently required from: Frank Wu, John Su, YH Lin, Dtrain Hsu, Ian Feng, Paul Menzel, Nick Vaccaro, Eric Lai, Amanda Hwang, Ricky Chang.
Tim Wawrzynczak has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/62804 )

Change subject: mb/google/brya/var/banshee: Add mic mute switch setting
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Patch Set 7:

(1 comment)

File src/mainboard/google/brya/variants/banshee/overridetree.cb:

https://review.coreboot.org/c/coreboot/+/62804/comment/a2df4e84_4d1b266d 
PS5, Line 328: 						register "privacy_gpio"  = "ACPI_GPIO_INPUT_ACTIVE_HIGH(GPP_F19)"
> The GPP_F22 is active high from HW's feedback.

Changing the privacy GPIO polarity is unrelated to the mic mute switch, it should go in a separate CL