Massflash utility for Jetson TX2 for JetPack 4.4/4.4.1

We released the corrected Massflash utility for Jetson TX2 for JetPack 4.4 and JetPack 4.4.1. It fixes the issue with massflash utility bundled in JetPack 4.4/4.4.1 releases.

Please download the tar file from here and follow the README inside the tar file.