Rover: failsafe clears rc-overrides

APMrover2/failsafe.cpp

@@ -69,6 +69,10 @@ void Rover::failsafe_trigger(uint8_t failsafe_type, bool on)
         control_mode != &mode_hold) {
         failsafe.triggered = failsafe.bits;
         gcs().send_text(MAV_SEVERITY_WARNING, "Failsafe trigger 0x%x", static_cast<uint32_t>(failsafe.triggered));
+
+        // clear rc overrides
+        RC_Channels::clear_overrides();
+
         switch (g.fs_action) {
             case 0:
                 break;