arm64: dts: renesas: draak: Sort device nodes

- Device nodes with unit addresses are sorted by unit address,
  - Device nodes without unit addresses and references are sorted
    alphabetically.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>