Patch merged into coreboot/master: mainboards/google/reef: Add support for tablet mode switch.

the following patch was just integrated into master:
commit 4f803ac28f4672cbf9ea8de92fb4ed680e582724
Author: Gwendal Grignou 
Date:   Wed Feb 1 12:56:24 2017 -0800

mainboards/google/reef: Add support for tablet mode switch.

Reef is a convertible add support for sending Tablet mode switch
    changes from EC to AP.

Change-Id: I6dfddbfdb5a2ffbdfd77c5f49602bf68e9693a06
    Signed-off-by: Gwendal Grignou 
    Reviewed-on: https://review.coreboot.org/18277
    Tested-by: build bot (Jenkins)
    Reviewed-by: Paul Menzel 
    Reviewed-by: Duncan Laurie

See https://review.coreboot.org/18277 for details.

-gerrit