Change in coreboot[master]: Initial support for new mainboard Cheza

[build bot (Jenkins) (Code Review)]

build bot (Jenkins) has posted comments on this change. ( https://review.coreboot.org/23861 )

Change subject: Initial support for new mainboard Cheza
......................................................................

Patch Set 1: Verified-1

Build Unstable

https://qa.coreboot.org/job/coreboot-gerrit/67873/ : UNSTABLE

https://qa.coreboot.org/job/coreboot-checkpatch/22366/ : SUCCESS