deepstream支持usb相机，支持GMSL相机的方法，以及错误排查

1，参考链接

https://forums.developer.nvidia.com/t/use-yuy2-format-as-input/107246/15

I had changed some properties(numbuffer-> none, UYVY->YUY2 and so on).

Thank you !!

2，Please share ‘# v4l2-ctl -d /dev/video0 –list-formats-ext’ for information.

3，问题解决方法参考我的链接：

ERROR from element src_elem: Internal data stream error. nvstreammux: Successfully handled EOS

4, list: /dev/video0;/dev/video1;