Change in coreboot[master]: sb/intel/common: Add SOUTHBRIDGE_INTEL_COMMON_SPI to include spi code

[build bot (Jenkins) (Code Review)]

build bot (Jenkins) has posted comments on this change. ( https://review.coreboot.org/21674 )

Change subject: sb/intel/common: Add SOUTHBRIDGE_INTEL_COMMON_SPI to include spi code
......................................................................

Patch Set 2: Verified+1

Build Successful

https://qa.coreboot.org/job/coreboot-gerrit/61031/ : SUCCESS

https://qa.coreboot.org/job/coreboot-checkpatch/16206/ : SUCCESS