input: touchscreen: nt36xxx: 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: Ib87a81aa8f39631ae3f3ea44f4a5dee4563bc514
Signed-off-by: Ritesh Kumar <riteshk@codeaurora.org>