Change in coreboot[master]: common/block/smm: Update SMM common code for io trap handling

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Change subject: common/block/smm: Update SMM common code for io trap handling
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Patch Set 5: Verified+1

Build Successful

https://qa.coreboot.org/job/coreboot-checkpatch/13749/ : SUCCESS

https://qa.coreboot.org/job/coreboot-gerrit/58338/ : SUCCESS