Patch merged into coreboot/master: google/auron: Fix omitted ACPI KB backlight for variants

the following patch was just integrated into master:
commit 4aeb2394e92b4bb1c9afc369ee482ff0c09c2a02
Author: Matt DeVillier 
Date:   Fri Dec 23 14:56:12 2016 -0600

google/auron: Fix omitted ACPI KB backlight for variants

Restores KB backlight functionality for auron variants
    gandof, lulu, and samus.

TEST: boot Lulu and observe KB backlight functional

Change-Id: Iaa852f9327ff1690111db610b4cc5266cd7925b4
    Signed-off-by: Matt DeVillier 
    Reviewed-on: https://review.coreboot.org/17960
    Tested-by: build bot (Jenkins)
    Reviewed-by: Martin Roth

See https://review.coreboot.org/17960 for details.

-gerrit