Change in coreboot[master]: nb/intel/x4x: Add a convenient macro to loop over bytelanes

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Change subject: nb/intel/x4x: Add a convenient macro to loop over bytelanes
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Patch Set 4:

Build Successful

https://qa.coreboot.org/job/coreboot-checkpatch/19744/ : SUCCESS

https://qa.coreboot.org/job/coreboot-gerrit/64986/ : SUCCESS