Faster boot via disabling UART during MB1, MB2, and CBOOT

Autonomous Machines Jetson & Embedded Systems Jetson AGX Xavier
3

hello andy.nicholas,

you may update below configuration file to disable bootloader messages;
i.e. $OUT/Linux_for_Tegra/bootloader/t186ref/BCT/tegra194-mb1-soft-fuses-l4t.cfg
please refer to Topic 145106 for more details.
thanks