Change in coreboot[master]: cpu/intel/car: Cache the whole ROM_SIZE

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Change subject: cpu/intel/car: Cache the whole ROM_SIZE
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Patch Set 1: Verified+1

Build Successful

https://qa.coreboot.org/job/coreboot-checkpatch/21300/ : SUCCESS

https://qa.coreboot.org/job/coreboot-gerrit/66692/ : SUCCESS