dt-bindings: soc: renesas: Document Renesas RZ/G3E SoC variants

Document Renesas RZ/G3E (R9A09G047) SoC variants.

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20241203105005.103927-3-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

Author: bijudas

Documentation/devicetree/bindings/soc/renesas/renesas.yaml

@@ -525,6 +525,19 @@ properties:
               - renesas,rzv2mevk2   # RZ/V2M Eval Board v2.0
           - const: renesas,r9a09g011
 
+      - description: RZ/G3E (R9A09G047)
+        items:
+          - enum:
+              - renesas,r9a09g047e27 # Dual Cortex-A55 + Cortex-M33 (15mm BGA)
+              - renesas,r9a09g047e28 # Dual Cortex-A55 + Cortex-M33 (21mm BGA)
+              - renesas,r9a09g047e37 # Dual Cortex-A55 + Cortex-M33 + Ethos-U55 (15mm BGA)
+              - renesas,r9a09g047e38 # Dual Cortex-A55 + Cortex-M33 + Ethos-U55 (21mm BGA)
+              - renesas,r9a09g047e47 # Quad Cortex-A55 + Cortex-M33 (15mm BGA)
+              - renesas,r9a09g047e48 # Quad Cortex-A55 + Cortex-M33 (21mm BGA)
+              - renesas,r9a09g047e57 # Quad Cortex-A55 + Cortex-M33 + Ethos-U55 (15mm BGA)
+              - renesas,r9a09g047e58 # Quad Cortex-A55 + Cortex-M33 + Ethos-U55 (21mm BGA)
+          - const: renesas,r9a09g047
+
       - description: RZ/V2H(P) (R9A09G057)
         items:
           - enum: