Change in coreboot[master]: mb/google/nissa: Add gpio lock pins

[Paul Menzel (Code Review)]

Attention is currently required from: Reka Norman, Tim Wawrzynczak, Ivy Jian, Eric Lai.
Paul Menzel has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/63568 )

Change subject: mb/google/nissa: Add gpio lock pins
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Patch Set 2:

(1 comment)

Commit Message:

https://review.coreboot.org/c/coreboot/+/63568/comment/41114f62_afb8be1e 
PS2, Line 9: Followed the Brya series to lock the gpio pins in baseboard.
           : Variant should honor locked gpios from baseboard, but not the last.
           : Variant can add more gpios to lock if needed.
Please reflow for 72 characters per line.