bug fix for rtsp server

houxiao

2017-08-11 c6968ba2fbd5e9f4e32fd5f62fd587f9a7d2ebc1

 VisitFace/RtspNativeCodec/app/src/main/cpp/serial.c

@@ -44,6 +44,10 @@

    // Set Baudrate
    switch (baud) {
        case 2400:
            cfsetispeed(&options, B2400);
            cfsetospeed(&options, B2400);
            break;
        case 9600:
            cfsetispeed(&options, B9600);
            cfsetospeed(&options, B9600);