Change in coreboot[master]: mb/google/poppy: Add variant for nocturne

[build bot (Jenkins) (Code Review)]

build bot (Jenkins) has posted comments on this change. ( https://review.coreboot.org/25803 )

Change subject: mb/google/poppy: Add variant for nocturne
......................................................................

Patch Set 3:

Build Successful

https://qa.coreboot.org/job/coreboot-gerrit/70924/ : SUCCESS