Sensors: Fix the mLock dead lock when enable sensor fail

SensorSeverce::enable will get the mLock, if enable the sensor
fail it will call the cleanupWithDisable and get the mLock too.
This will be a dead lock and crash the Android framewor. The
mLock should be used by the disable function but not used in
the cleanupWithDisable function.

Change-Id: I789fe7bf0ef944ae8852016bea92e8a373f469cd