Change in coreboot[master]: sgx: Move SGX code to intel/common/block

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Change subject: sgx: Move SGX code to intel/common/block
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Patch Set 3: Verified+1

Build Successful

https://qa.coreboot.org/job/coreboot-gerrit/56295/ : SUCCESS

https://qa.coreboot.org/job/coreboot-checkpatch/11891/ : SUCCESS