2021-11-30 1.修复乐橙Android，没调用拒接接口问题。

JLChen

2021-11-30 efad979b6fae76fb37a4de7e94e6bac0a85cb72c

 HDL_ON/DAL/DriverLayer/UdpSocket.cs

@@ -46,10 +46,9 @@
            busSocket = new Socket (AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
            busSocket.EnableBroadcast = true;
            try {
                //busSocket.Bind (new IPEndPoint (IPAddress.Any, 6000));
                busSocket.Bind(new IPEndPoint(IPAddress.Any, Port));
            busSocket.Bind(new IPEndPoint(IPAddress.Any, Port));

                busSocket.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.AddMembership, new MulticastOption(IPAddress.Parse("239.0.168.188")));
            busSocket.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.AddMembership, new MulticastOption(IPAddress.Parse("239.0.168.188")));
         }
         catch{
                busSocket = null;