[coreboot-gerrit] Patch merged into coreboot/master: Revert "google/pyro: remove Wacom touchscreen probed flag"

the following patch was just integrated into master:
commit b576e6f236fd374421287f39542a9e26608406ff
Author: Kevin Chiu 
Date:   Sat Feb 4 03:55:01 2017 +0800

Revert "google/pyro: remove Wacom touchscreen probed flag"

Reason for revert:
    Pyro has two touchscreen sources: WACOM/ELAN.
    It will not have both touchscreen IC in one system at the same time.

So the "probed" property of WACOM i2c device is mandatory to set for kernel
    to know whether it exists before driver initializes it.

Otherwise in ELAN case, when driver fails to init WACOM i2c device, ACPI _OFF
    will be invoked to set GPIO#152 low to cut off power.

BUG=chrome-os-partner:62371
    BRANCH=reef
    TEST=emerge-pyro coreboot
    Change-Id: I30f467bd8720d959686dc14f7877e6bc11ea6213
    Signed-off-by: Kevin Chiu 
    Reviewed-on: https://review.coreboot.org/18291
    Reviewed-by: Aaron Durbin 
    Tested-by: build bot (Jenkins)
    Reviewed-by: Furquan Shaikh

See https://review.coreboot.org/18291 for details.

-gerrit