Change in coreboot[master]: sb/intel/common: Add SOUTHBRIDGE_INTEL_COMMON_SPI

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Change subject: sb/intel/common: Add SOUTHBRIDGE_INTEL_COMMON_SPI
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Patch Set 9:

Build Successful

https://qa.coreboot.org/job/coreboot-checkpatch/17920/ : SUCCESS

https://qa.coreboot.org/job/coreboot-gerrit/62956/ : SUCCESS