Merge changes from topic "morello-dt-fix" into integration

* changes:
  fix(morello): dts: remove #a-c and #s-c from memory node
  fix(morello): dts: fix GICv3 compatible string
  fix(morello): dts: fix DT node naming
  fix(morello): dts: fix SCMI shmem/mboxes grouping
  fix(morello): dts: use documented DPU compatible string
  fix(morello): dts: fix DP SMMU IRQ ordering
  fix(morello): dts: fix SMMU IRQ ordering
  fix(morello): dts: add model names
  fix(morello): dts: fix stdout-path target