udp绑定固定的端口以后，真机无法收到onListening,和onMessage回调（模拟器OK）
查看相关问题并没有解决（https://developers.weixin.qq.com/community/develop/doc/0006e04cd149988a2b89b40b951000?_at=1591691801863） https://developers.weixin.qq.com/miniprogram/dev/api/network/udp/UDPSocket.onListening.html https://developers.weixin.qq.com/miniprogram/dev/api/network/udp/UDPSocket.onMessage.html
