input: qcom-hv-haptics: delay hBoost turning off

Extend hBoost PBS control to all play modes, so hBoost disabling
will be always handled in the driver by triggering the PBS. Also,
delay hBoost turning off 2 seconds after the stop command to
prevent hBoost being enabled/disabled too frequently in repeated
short vibration case, this help to avoid hBoost lockup when it's
enabled and disabled very quickly.

Change-Id: I76263e51ad00a01d95ff7fd7b08c1655031516e6
Signed-off-by: Fenglin Wu <fenglinw@codeaurora.org>