Patch merged into coreboot/master: mainboard/google/reef: Add PowerResource for ELAN touchscreen

the following patch was just integrated into master:
commit 3ce104e5d867e96c9a2a21103d26de5826af6b12
Author: Furquan Shaikh 
Date:   Thu Oct 20 22:48:45 2016 -0700

mainboard/google/reef: Add PowerResource for ELAN touchscreen

Define reset_gpio and enable_gpio for touchscreen device so that when
    kernel puts this device into D3, we put the device into
    reset. PowerResource _ON and _OFF routines are used to put the device
    into D0 and D3 states.

BUG=chrome-os-partner:55988

Change-Id: Ia905f9eb630cd96767b639aec74131dbd7952d0e
    Signed-off-by: Furquan Shaikh 
    Reviewed-on: https://review.coreboot.org/17083
    Tested-by: build bot (Jenkins)
    Reviewed-by: Aaron Durbin 
    Reviewed-by: Duncan Laurie

See https://review.coreboot.org/17083 for details.

-gerrit