[M] Change in coreboot[master]: mb/google/rex: Enable audio BT offload

[Anil Kumar K (Code Review)]

Attention is currently required from: Tarun Tuli, Ravishankar Sarawadi, Paul Menzel, Kapil Porwal, Uday Bhat, Anil Kumar K, Jairaj Arava.

Anil Kumar K has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/72881 )

Change subject: mb/google/rex: Enable audio BT offload
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Patch Set 15:

(3 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/72881/comment/db089406_9f44bfe8 
PS13, Line 10: SSP1 needs to be used for BT offload and program vGPIO.
> Yes . I2S0 and I2S2 lines are being used for speaker adn HP connections on daughter board. […]

Done

https://review.coreboot.org/c/coreboot/+/72881/comment/c2f2a026_b6a9f02b 
PS13, Line 13: TEST=Playback through BT
> Did BT work before? […]

we have added the details in partner bug

Patchset:

PS13:
> BT offload was verified on Rex with I2S audio configuration […]

Done