Change in coreboot[master]: mb/google/cherry: support max98390 audio amp

[Rex-BC Chen (Code Review)]

Attention is currently required from: Hung-Te Lin, Paul Menzel, Trevor Wu, Yu-Ping Wu.
Rex-BC Chen has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/63083 )

Change subject: mb/google/cherry: support max98390 audio amp
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Patch Set 5:

(2 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/63083/comment/efbcd862_1c37763f 
PS4, Line 7: Add MAX98390 support for dojo
> no need to mention dojo. we're adding a new audio component, […]

Done

https://review.coreboot.org/c/coreboot/+/63083/comment/1036788f_0d20ff3f 
PS4, Line 9: For dojo project, we use MAX98390 to output audio. Therefore, we
           : add a config "CHERRY_USE_MAX98390" to enable it and hook it up
           : over I2S.
> The Cherry follower projects may choose Max98390 for audio […]

Done