[S] Change in coreboot[main]: mb/google/rex/var/karis: Follow rex0 CNVi/PCIe switching

[Paul Menzel (Code Review)]

Attention is currently required from: David Wu, Dinesh Gehlot, Eran Mitrani, Jack Lai, Jakub Czapiga, Kapil Porwal, Mac Chiang, Tarun, Tyler Wang.

Paul Menzel has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/80215?usp=email )

The change is no longer submittable: All-Comments-Resolved is unsatisfied now.

Change subject: mb/google/rex/var/karis: Follow rex0 CNVi/PCIe switching
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Patch Set 5:

(1 comment)

Commit Message:

https://review.coreboot.org/c/coreboot/+/80215/comment/d1d6156e_8861d53e :
PS5, Line 9: Follow reference design rex0, keep the GPIO settings of CNVi/PCIe.
Why? What are the problems with the current one, and why was this tried in the first place?