input: touchscreen: synaptics_tcm: Fix doze-mode issue

Device can enter doze mode from on mode without going
to suspend mode. In this case, touch will be on during
doze mode. But on resume from doze mode, touch driver
resume is done again. To avoid this, add a check to
resume touch only when it was in suspend state before.

Change-Id: I2b4b208d6a7ca2ac8c230d70e13d0d468b9fd554
Signed-off-by: Lipsa Rout <lrout@codeaurora.org>