[S] Change in coreboot[main]: mb/google/brya: Create trulo variant

[Varshit Pandya (Code Review)]

Attention is currently required from: Dinesh Gehlot, Eric Lai, Kapil Porwal, Nick Vaccaro, Subrata Banik.

Varshit Pandya has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/81627?usp=email )

Change subject: mb/google/brya: Create trulo variant
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Patch Set 2:

(1 comment)

Commit Message:

https://review.coreboot.org/c/coreboot/+/81627/comment/8bfc494d_c01a4f2c :
PS2, Line 10: 
it would be great if you could add info on how this was tested ..