commander: send parachute command on termination (#17564)

* commander: send parachute command on termination

This sends the DO_PARACHUTE command to parachute component.

* commander: fix lying comments and printf

* commander: use one flag for termination triggered

This merges the duplicate flags _flight_termination_triggered and
_flight_flight_termination_printed.

* commander: correct variable name

* commander: always send tune with parachute

* commander: fix target_component for parachute cmd

The previous changes were wrong in that all commands were now sent to
the parachute component which doesn't make any sense. Of course only the
parachute command should be sent there.

src/modules/commander/Commander.hpp

@@ -187,6 +187,8 @@ private:
 
 	bool stabilization_required();
 
+	void send_parachute_command();
+
 	DEFINE_PARAMETERS(
 
 		(ParamInt<px4::params::NAV_DLL_ACT>) _param_nav_dll_act,
@@ -373,7 +375,6 @@ private:
 	bool		_failsafe_old{false};	///< check which state machines for changes, clear "changed" flag
 	bool		_have_taken_off_since_arming{false};
 	bool		_should_set_home_on_takeoff{true};
-	bool		_flight_termination_printed{false};
 	bool		_system_power_usb_connected{false};
 
 	cpuload_s		_cpuload{};