Change in coreboot[master]: soc/intel/skylake: Enable UART debug controller on S3 resume

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Change subject: soc/intel/skylake: Enable UART debug controller on S3 resume
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Patch Set 7: Verified+1

Build Successful

https://qa.coreboot.org/job/coreboot-checkpatch/13759/ : SUCCESS

https://qa.coreboot.org/job/coreboot-gerrit/58348/ : SUCCESS