Change in coreboot[master]: soc/intel/cannonlake: Implement pmc_soc_restore_power_failure as per EDS

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Change subject: soc/intel/cannonlake: Implement pmc_soc_restore_power_failure as per EDS
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Patch Set 2:

Build Successful

https://qa.coreboot.org/job/coreboot-gerrit/64462/ : SUCCESS