dt-bindings: pinctrl: renesas: Document RZ/G2UL pinctrl

Document Renesas RZ/G2UL pinctrl bindings. RZ/G2UL GPIO block is
almost identical to RZ/G2L and has lesser pins compared to RZ/G2L.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220315152717.20045-1-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

Documentation/devicetree/bindings/pinctrl/renesas,rzg2l-pinctrl.yaml

@@ -11,8 +11,8 @@ maintainers:
   - Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
 
 description:
-  The Renesas SoCs of the RZ/{G2L,V2L} series feature a combined Pin and GPIO
-  controller.
+  The Renesas SoCs of the RZ/{G2L,V2L} alike series feature a combined Pin and
+  GPIO controller.
   Pin multiplexing and GPIO configuration is performed on a per-pin basis.
   Each port features up to 8 pins, each of them configurable for GPIO function
   (port mode) or in alternate function mode.
@@ -23,6 +23,7 @@ properties:
     oneOf:
       - items:
           - enum:
+              - renesas,r9a07g043-pinctrl # RZ/G2UL{Type-1,Type-2}
               - renesas,r9a07g044-pinctrl # RZ/G2{L,LC}
 
       - items: