dt-bindings: can: renesas,rcar-canfd: Document RZ/G2UL support

Add CANFD binding documentation for Renesas R9A07G043 (RZ/G2UL) SoC.

Link: https://lore.kernel.org/all/20220423130743.123198-1-biju.das.jz@bp.renesas.comSigned-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

Documentation/devicetree/bindings/net/can/renesas,rcar-canfd.yaml

@@ -33,6 +33,7 @@ properties:
 
       - items:
           - enum:
+              - renesas,r9a07g043-canfd    # RZ/G2UL
               - renesas,r9a07g044-canfd    # RZ/G2{L,LC}
               - renesas,r9a07g054-canfd    # RZ/V2L
           - const: renesas,rzg2l-canfd     # RZ/G2L family