JetPack 4.6.4/L4T 32.7.4 released

JetPack 4.6.4 with L4T 32.7.4 is released which brings security fixes and adds Image based OTA support for Jetson AGX Xavier 32GB with Hynix DRAM and Western Digital EMMC - PCN 208560

This release supports Jetson AGX Xavier series, Jetson Xavier NX series, Jetson TX2 series, Jetson TX1, and Jetson Nano.