Change in coreboot[master]: google/gru: Add SKU ID for Scarlet

[build bot (Jenkins) (Code Review)]

build bot (Jenkins) has posted comments on this change. ( https://review.coreboot.org/22697 )

Change subject: google/gru: Add SKU ID for Scarlet
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Patch Set 1:

Build Unstable

https://qa.coreboot.org/job/coreboot-gerrit/64109/ : UNSTABLE

https://qa.coreboot.org/job/coreboot-checkpatch/18895/ : SUCCESS