Maxim Moskalets authored 9 months ago and Tom Rini committed 8 months ago

Some operating systems (e.g. seL4) and embedded applications are ELF
images. It is convenient to use FIT-images to implement trusted boot.
Added "elf" image type for booting using bootm command.

Signed-off-by: Maxim Moskalets <maximmosk4@gmail.com>