input: touchscreen: nt36xxx: Add trusted touch support

Add Trusted touch support to nt36xxx Touchscreen driver.
This feature enables driver to operate in trusted touch
mode in trusted virtual machine(TVM). The primary virtual
machine(PVM) lends resources such as IO memory and touch
irq to TVM prior to trusted touch is initiated and
reclaims those resources back after trusted touch usecase
finishes. The resource requirements of TVM such as clock,
regulators etc are taken care by PVM. Introduce state
machine for various checkpoints in trusted touch usecase.
In error scenarios, this state machine helps driver to
rollback to previous state.

Change-Id: I5000ba016cee21c7b6b6beab8a7bb15a8c23f8d5
Signed-off-by: Ritesh Kumar <riteshk@codeaurora.org>