Change in coreboot[master]: soc/intel/common/smbus: Don't clear random bits

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Change subject: soc/intel/common/smbus: Don't clear random bits
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Patch Set 1: Verified+1

Build Successful

https://qa.coreboot.org/job/coreboot-gerrit/58764/ : SUCCESS

https://qa.coreboot.org/job/coreboot-checkpatch/14137/ : SUCCESS