Add const

src/Vehicle/Vehicle.cc

@@ -263,7 +263,7 @@ void Vehicle::_sendMessage(mavlink_message_t message)
             // Give the plugin a chance to adjust
             _firmwarePlugin->adjustMavlinkMessage(&message);
             
-            static uint8_t messageKeys[256] = MAVLINK_MESSAGE_CRCS;
+            static const uint8_t messageKeys[256] = MAVLINK_MESSAGE_CRCS;
             mavlink_finalize_message_chan(&message, mavlink->getSystemId(), mavlink->getComponentId(), link->getMavlinkChannel(), message.len, messageKeys[message.msgid]);
             
             // Write message into buffer, prepending start sign