Change in coreboot[master]: mb/google/nissa/var/nivviks: Add TcssAuxori for nivviks

[Deepti Deshatty (Code Review)]

Attention is currently required from: Kangheui Won, Reka Norman, Paul Menzel, Tim Wawrzynczak, Usha P.
Deepti Deshatty has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/62731 )

Change subject: mb/google/nissa/var/nivviks: Add TcssAuxori for nivviks
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Patch Set 2: -Code-Review

(1 comment)

File src/mainboard/google/brya/variants/nivviks/overridetree.cb:

https://review.coreboot.org/c/coreboot/+/62731/comment/77d8f148_817e9dca 
PS2, Line 12: 	register "TcssAuxOri" = "5"
> There's an explanation of the bitfield here: https://review.coreboot. […]

Yes,
Nivviks USBC port0 do not have retimer, USBC port1 has Redriver but that do not flip the data lines. Hence we need to set bits for both the USBC ports.