input: qcom-hv-haptics: clear HW faults before enabling play

If there was any HW fault generated in previous playing, it would
be retained until writing the FAULT_CLR register. Clear the HW faults
before triggering play to make sure it won't be started with any
retained fault status.

Change-Id: Ibac0e1ed3c745efeb5048845a073605642d8407d
Signed-off-by: Fenglin Wu <fenglinw@codeaurora.org>