Change in coreboot[master]: mb/google/guybrush/var/dewatt: disable unused PCIe clock setting

[Kenneth Chan (Code Review)]

Attention is currently required from: Paul Menzel, Rob Barnes, Karthik Ramasubramanian.
Kenneth Chan has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/60328 )

Change subject: mb/google/guybrush/var/dewatt: disable unused PCIe clock setting
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Patch Set 2: Code-Review+1

(2 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/60328/comment/f15be6b1_8496aec0 
PS1, Line 9: Disable unused PCIe GPP_CLK1 and GPP_CLK2 for dewatt.
> Just for correctness, or does this fix some problem? The source is the schematics?

For correctness, unused with dewatt chematics.

Patchset:

PS1:
> GPP_CLK1 is for SD and GPP_CLK2 is for WWAN on guybrush right? Can you add this to the commit messag […]

Yes. Done.