Parameterize timeout for radio status

src/modules/mavlink/mavlink_params.c

@@ -175,3 +175,17 @@ PARAM_DEFINE_INT32(MAV_HB_FORW_EN, 1);
  * @group MAVLink
  */
 PARAM_DEFINE_INT32(MAV_ODOM_LP, 0);
+
+/**
+ * Timeout in seconds for the RADIO_STATUS reports coming in
+ *
+ * If the connected radio stops reporting RADIO_STATUS for a certain time,
+ * a warning is triggered and, if MAV_X_RADIO_CTL is enabled, the software-flow
+ * control is reset.
+ *
+ * @group MAVLink
+ * @unit s
+ * @min 1
+ * @max 250
+ */
+PARAM_DEFINE_INT32(MAV_RADIO_TOUT, 5);