L4T Jetson/r32.3.x patch

Multimedia [GSTREAMER]streaming using jpegenc halts after a short delay https://devtalk.nvidia.com/default/topic/1069296/jetson-nano/streaming-using-jpegenc-halts-after-a-short-delay/post/5419826/#5419826

Misc [Nano/TX1] fix the Nano and TX1 APP partition cloning issue https://devtalk.nvidia.com/default/topic/1064479/jetson-nano/about-the-making-of-the-mirror-of-the-jetson-nano-module/post/5419408/#5419408