Change in coreboot[master]: nb/intel/pineview: Use common code for SMM in TSEG

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Change subject: nb/intel/pineview: Use common code for SMM in TSEG
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Patch Set 9:

Build Successful

https://qa.coreboot.org/job/coreboot-gerrit/73604/ : SUCCESS

https://qa.coreboot.org/job/coreboot-checkpatch/27715/ : SUCCESS