Publish telemetry status on telemetry update and on heartbeat update events to avoid inducing heartbeat update latencies resulting in spurious telemetry link dropped detections. Makes overall state handling simpler

src/modules/mavlink/mavlink_main.cpp

@@ -217,6 +217,8 @@ Mavlink::Mavlink() :
 		errx(1, "instance ID is out of range");
 		break;
 	}
+
+	_rstatus.type = TELEMETRY_STATUS_RADIO_TYPE_GENERIC;
 }
 
 Mavlink::~Mavlink()