Recipes are patterned after those in meta-arm, with the
following changes:
* Sources are obtained from the NVIDIA L4T public_sources archive.
* The TA development kit requires a distinct recipe to allow
for building an out-of-tree TA from the NVIDIA samples into
the optee OS image.
* Jetson targets need a special tool to bundle TF-A with OP-TEE
into the secure OS image, and deployment happens in that recipe.
Signed-off-by: Matt Madison <matt@madison.systems>