dt-bindings: soc: renesas: Preserve the order of SoCs based on their part numbers

This commit ensures the preservation of the order of SoCs according to
their part numbers.

Fixes: 9c57c4a9 ("dt-bindings: soc: renesas: Document Renesas RZ/G3S SoC variants")
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20240208120455.48009-1-prabhakar.mahadev-lad.rj@bp.renesas.com


Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>