Change in coreboot[master]: soc/intel: lpc: Use IS_POWER_OF_2 instead of open-coding it

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Change subject: soc/intel: lpc: Use IS_POWER_OF_2 instead of open-coding it
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Patch Set 1: Verified+1

Build Successful

https://qa.coreboot.org/job/coreboot-gerrit/60989/ : SUCCESS

https://qa.coreboot.org/job/coreboot-checkpatch/16168/ : SUCCESS