dt-bindings: pwm: rcar: add r8a77961 support

Add support for r8a77961 (R-Car M3-W+).
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

Documentation/devicetree/bindings/pwm/renesas,pwm-rcar.yaml

@@ -27,6 +27,7 @@ properties:
           - renesas,pwm-r8a7794   # R-Car E2
           - renesas,pwm-r8a7795   # R-Car H3
           - renesas,pwm-r8a7796   # R-Car M3-W
+          - renesas,pwm-r8a77961  # R-Car M3-W+
           - renesas,pwm-r8a77965  # R-Car M3-N
           - renesas,pwm-r8a77970  # R-Car V3M
           - renesas,pwm-r8a77980  # R-Car V3H