Change in coreboot[master]: soc/intel/cannonlake: provide common LPDDR4 memory init

[build bot (Jenkins) (Code Review)]

build bot (Jenkins) has posted comments on this change. ( https://review.coreboot.org/22204 )

Change subject: soc/intel/cannonlake: provide common LPDDR4 memory init
......................................................................

Patch Set 18: Verified-1

Build Unstable

https://qa.coreboot.org/job/coreboot-gerrit/63860/ : UNSTABLE

https://qa.coreboot.org/job/coreboot-checkpatch/18728/ : SUCCESS