[S] Change in coreboot[master]: mb/google/brya/var/skolas: add nau8318 speaker support

[Mac Chiang (Code Review)]

Attention is currently required from: AlanKY Lee, David Lin, Tarun Tuli.

Mac Chiang has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/76925?usp=email )

Change subject: mb/google/brya/var/skolas: add nau8318 speaker support
......................................................................

Patch Set 10:

(1 comment)

Patchset:

PS10:
> Hi Mac, ongoing now, we may need to change the GPIO init sequence. […]

Hi Alan,
  yup, as you mentioned, the fw_config will be the final sequence which override the GPP_R7 from GPIO to NC again…

I suggest that consider other NC as GPIO pin for SPK_BEEP_EN (not I2S, dmic relative pins) That would solve the sequence overwritten situation.

Otherwise, need to duplicated the entire max98360_enable_pads[] flow to new nau8318_enable_pads[] and handle fw_config separately.

nau8318_enable_pads[] = {
        ...
    PAD_NC(GPP_R7, DEEP),

}