[coreboot-gerrit] Change in coreboot[master]: soc/intel/common: Add functions into common SMM library

[Subrata Banik (Code Review)]

Subrata Banik has posted comments on this change. ( https://review.coreboot.org/21268 )

Change subject: soc/intel/common: Add functions into common SMM library
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Patch Set 2:

will clean up APL and SKL code SMM region function and make use of this common code