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

[Rob Barnes (Code Review)]

Attention is currently required from: Paul Menzel, Kenneth Chan, Karthik Ramasubramanian.
Rob Barnes 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+2