Change in coreboot[master]: soc/intel/cannonlake: Fix UART2 serial log broken issue

[build bot (Jenkins) (Code Review)]

build bot (Jenkins) has posted comments on this change. ( https://review.coreboot.org/22862 )

Change subject: soc/intel/cannonlake: Fix UART2 serial log broken issue
......................................................................

Patch Set 5: Verified+1

Build Successful

https://qa.coreboot.org/job/coreboot-gerrit/64532/ : SUCCESS