Change in coreboot[master]: google/kahlee: Add mainboard GPIOs to ACPI

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Change subject: google/kahlee: Add mainboard GPIOs to ACPI
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Patch Set 18:

Build Successful

https://qa.coreboot.org/job/coreboot-gerrit/58073/ : SUCCESS

https://qa.coreboot.org/job/coreboot-checkpatch/13506/ : SUCCESS