Optimize service stop
By default Reboot/FactoryReset operation cause a exit of process, which then getting re-spawned by procd. This change notify the procd about the stop, so it won't re-spawn the process again.
By default Reboot/FactoryReset operation cause a exit of process, which then getting re-spawned by procd. This change notify the procd about the stop, so it won't re-spawn the process again.