ARM: dts: msm: add synaptics touch firmware for wearables

Add synaptics touch firmware name as DT property for SDW3100
wearable devices, so that touch driver can parse and flash it
while boot-up. And remove the x/y-flip properties as the firmware
takes care of the same.

Change-Id: Ic71c9beafd271932fd1f13127082b459b63fdda6
Signed-off-by: Shantanu Jain <shjain@codeaurora.org>