input: touchscreen: focaltech: Block resume work on PVM

While trusted touch is underway, block resume work
to flush touch FIFO since ownership of register space
is with Trusted VM.

Change-Id: Ibcd7274c560ddc9eae4eb9218198ab5039acdc18
Signed-off-by: Shashank Babu Chinta Venkata <sbchin@codeaurora.org>
Signed-off-by: Ritesh Kumar <riteshk@codeaurora.org>