[XS] Change in coreboot[main]: mb/google/nissa/var/anraggar: Enable BT audio offload

[Simon Yang (Code Review)]

Attention is currently required from: Eric Lai, Jianeng Ceng, Kapil Porwal, Nick Vaccaro, Subrata Banik, Weimin Wu.

Simon Yang has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/80001?usp=email )

Change subject: mb/google/nissa/var/anraggar: Enable BT audio offload
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Patch Set 2:

(1 comment)

File src/mainboard/google/brya/variants/anraggar/variant.c:

https://review.coreboot.org/c/coreboot/+/80001/comment/f2ad57f6_f0ab59a3 :
PS2, Line 13: void variant_update_soc_chip_config(struct soc_intel_alderlake_config *config)
What's the reason you need to use the function to override config without an if? maybe you can try to add `register "cnvi_bt_audio_offload" = "1"` directly in overridetree.cb.