Change in coreboot[master]: mainboard/intel/cannonlake_rvp: Include ChromeOS support

[build bot (Jenkins) (Code Review)]

build bot (Jenkins) has posted comments on this change. ( https://review.coreboot.org/21281 )

Change subject: mainboard/intel/cannonlake_rvp: Include ChromeOS support
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Patch Set 4: Verified-1

Build Unstable

https://qa.coreboot.org/job/coreboot-gerrit/59913/ : UNSTABLE

https://qa.coreboot.org/job/coreboot-checkpatch/15168/ : SUCCESS