input: touchscreen: release all touches before suspend

release all touches before going to suspend for goodix
gt9xx TS driver.

This patch is propagated from msm-3.4 kernel
(commit: a1b5c4559026d9ddc789f64e17c1ade0a281d372
input: touchscreen: release all touches before suspend)

Change-Id: Ia3446f3c23be4fe29bfea5f85b22e8b903cffb9e
Signed-off-by: Shantanu Jain <shjain@codeaurora.org>
Signed-off-by: Sudhakar Manapati <smanap@codeaurora.org>