Pre-signed builds need to ensure that DTB_FILE has been substituted with the actual kernel .dtb file in initrd-flash.xml. Unsigned builds take a different path through initrd-flash such that the tegraXXX-flash-helper will have already made the substitution.
Pre-signed builds need to ensure that DTB_FILE has been substituted with the actual kernel .dtb file in initrd-flash.xml. Unsigned builds take a different path through initrd-flash such that the tegraXXX-flash-helper will have already made the substitution.
Fixes #1452