GCS_MAVLink: mark MAV_CMD_DO_REPOSITION as having a location

libraries/GCS_MAVLink/GCS_Common.cpp

@@ -4500,6 +4500,7 @@ bool GCS_MAVLINK::command_long_stores_location(const MAV_CMD command)
     case MAV_CMD_DO_SET_ROI:
     case MAV_CMD_DO_SET_ROI_LOCATION:
     case MAV_CMD_NAV_TAKEOFF:
+    case MAV_CMD_DO_REPOSITION:
         return true;
     default:
         return false;