Patch merged into coreboot/master: google/pyro: Add ELAN touch screen support

the following patch was just integrated into master:
commit 5aadea9d76692776f843f9671a8b34f46d75609d
Author: Kevin Chiu 
Date:   Tue Jan 10 22:31:05 2017 +0800

google/pyro: Add ELAN touch screen support

Current fw does not create ACPI device for
    OS to recognize ELAN touchscreen.

List the touch screen in the devicetree so that
    the correct ACPI device are created.

BUG=chrome-os-partner:61803
    BRANCH=reef
    TEST=emerge-pyro coreboot
    Change-Id: I9015fa63ef3aba74b682da3608a05ee49c4947c5
    Signed-off-by: Kevin Chiu 
    Reviewed-on: https://review.coreboot.org/18086
    Tested-by: build bot (Jenkins)
    Reviewed-by: Aaron Durbin

See https://review.coreboot.org/18086 for details.

-gerrit