Patch merged into coreboot/master: google/gru: add scarlet variant

the following patch was just integrated into master:
commit f57a768762b13785b7c18917bbc534759942afee
Author: philipchen 
Date:   Wed Jan 25 13:37:48 2017 -0800

google/gru: add scarlet variant

There will be more follow-up changes.

BUG=chrome-os-partner:62377
    BRANCH=None
    TEST=emerge-scarlet coreboot libpayload

Change-Id: I9ca45598ff0ab12bf8063d16a86be564cf509390
    Signed-off-by: Patrick Georgi 
    Original-Commit-Id: a020a9ba1228b15599e202972df0096f58b1b31c
    Original-Change-Id: I4804239483f8b35bc3703aa62c2a8fd642e0234a
    Original-Signed-off-by: philipchen 
    Original-Reviewed-on: https://chromium-review.googlesource.com/433039
    Original-Commit-Ready: Philip Chen 
    Original-Tested-by: Philip Chen 
    Original-Reviewed-by: Julius Werner 
    Reviewed-on: https://review.coreboot.org/18296
    Tested-by: build bot (Jenkins)
    Reviewed-by: Jonathan Neuschäfer

See https://review.coreboot.org/18296 for details.

-gerrit