RTL: publish a status message on currently chosen RTL point

src/modules/logger/logged_topics.cpp

@@ -102,6 +102,7 @@ void LoggedTopics::add_default_topics()
 	add_optional_topic("px4io_status");
 	add_topic("radio_status");
 	add_topic("rtl_time_estimate", 1000);
+	add_optional_topic("rtl_status", 5000);
 	add_optional_topic("sensor_airflow", 100);
 	add_topic("sensor_combined");
 	add_optional_topic("sensor_correction");