ARM: dts: msm: update touchscreen properties for skug

As some new properties were added to support all Focaltech models
and support smart firmware update, skug device tree needs to update.

Change-Id: I7af15e7da5fda9caa7cde55bfd65e38c8d1748d4
Signed-off-by: Bingzhe Cai <bingzhec@codeaurora.org>