[M] Change in coreboot[main]: mb/intel/adlrvp: Add Realtek ALC256 audio verb table

[Vamshi Krishna Gopal (Code Review)]

Attention is currently required from: Arthur Heymans, Karthik Ramasubramanian, Krishna P Bhat D, Nick Vaccaro, Paul Menzel, Poornima Tom, Subrata Banik, Vamshi Krishna Gopal.

Vamshi Krishna Gopal has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/79415?usp=email )

Change subject: mb/intel/adlrvp: Add Realtek ALC256 audio verb table
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Patch Set 7:

(1 comment)

Patchset:

PS7:
> > Good Suggestion Subrata, Yes ALC256 verb table is generic. Verb table can be design agnostic. […]

Subrata, I just relooked into the other designs where we are using verb table, (eg: src/mainboard/starlabs/starbook/variants/tgl/hda_verb.c) , Verb table holds register values for multiple audio endpoint and for chrome designs these values are same most of the time but in few rare cases where we need some tunning or we dont want custom set of endpoints wrt design needs,  we wont be able to change them if we have verb table as generic, so i was thinking

we can have 2 options here,

1. If the current design audio endpoints aligns with generic verb table we can use generic verbtable.
2. If the current design audio endpoints doesnt align with generic verb table we can have custome verbtable specific to that design.

Let me know your thoughts.