[coreboot-gerrit] Change in coreboot[master]: nb/intel/x4x: Rename a things that are not ddr2 specific

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Change subject: nb/intel/x4x: Rename a things that are not ddr2 specific
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Patch Set 4:

Build Successful

https://qa.coreboot.org/job/coreboot-gerrit/54749/ : SUCCESS

https://qa.coreboot.org/job/coreboot-checkpatch/10452/ : SUCCESS