fngsystem-image: Add uuu tool

The default way to initialize a new board is using the NXP uuu tool. This tool can do various installation tasks and supports different work-flows.

We use the SPL from U-Boot for teh initial bootup and initialization and the U-Boot fastboot protocol to upload the Flash-N-Go System image into RAM. The image can be booted using a matching device tree.

For convenience a set of shell and batch scripts will be created and deployed to the images deploy directory.

BCS 746-000401