Change in coreboot[master]: soc/intel/skylake: Use common systemagent code

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Change subject: soc/intel/skylake: Use common systemagent code
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Patch Set 4: Verified-1

Build Failed

https://qa.coreboot.org/job/coreboot-gerrit/54688/ : ABORTED

https://qa.coreboot.org/job/coreboot-checkpatch/10393/ : SUCCESS