When introducing CN913x devices by using the meta-belden-marvell-bsp layer
trusted-firmwarre-a recipe was copied from meta-arm and modified. Now the
original recipe is used from meta-arm and the changes were put into a
bbappend.
Also trusted-firmware-a version changed from 2.3 to 2.6.
BREAKING CHANGE: bblayers.conf / bblayers.conf.sample of project
using CoreOS should be adapted to use external-layers instead
of layers for each moved layers
The layer.conf of meta-belden-coreos now depends on:
- meta-virtualization (needed for podman)
- meta-webserver (needed for cockpit)
The bblayers.conf.sample file now enable theses two layers and theirs dependancies