Change in coreboot[master]: cpu/intel/socket_mPGA478mn, socket_BGA956: Use common CAR code

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Change subject: cpu/intel/socket_mPGA478mn,socket_BGA956: Use common CAR code
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Patch Set 10: Verified+1

Build Successful

https://qa.coreboot.org/job/coreboot-checkpatch/21278/ : SUCCESS

https://qa.coreboot.org/job/coreboot-gerrit/66669/ : SUCCESS