ARM: dts: qcom: correct resolution for MSM8917 hd+ ML touch panel

Correct touch resolution for MSM8917 HD+ ML touch panel, by removing
the DT property and using the resolution flashed in touch controller
itself.

Change-Id: I77da594ebde6d28a552195f2a7d49b8d4e039136
Signed-off-by: Shantanu Jain <shjain@codeaurora.org>