Fix request image compile error

src/uas/UAS.cc

@@ -2115,7 +2115,7 @@ void UAS::requestImage()
     if (imagePacketsArrived == 0)
     {
         mavlink_message_t msg;
-        mavlink_msg_data_transmission_handshake_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg, DATA_TYPE_JPEG_IMAGE, 0, 0, 0, 0, 0, 50);
+        mavlink_msg_data_transmission_handshake_pack(mavlink->getSystemId(), mavlink->getComponentId(), &msg, MAVLINK_DATA_STREAM_IMG_JPEG, 0, 0, 0, 0, 0, 50);
         sendMessage(msg);
     }
 }