dt-bindings: pinctrl: ocelot: Add LAN9645x SoC support

Add documentation for the compatibles designated for the following SKUs
in the LAN9645x family:

lan96455f
lan96457f
lan96459f

with fallback a compatible for the smallest 5-ported SKUs lan96455f.

Reviewed-by: Steen Hegelund <Steen.Hegelund@microchip.com>
Reviewed-by: Daniel Machon <daniel.machon@microchip.com>
Signed-off-by: Jens Emil Schulz Østergaard <jensemil.schulzostergaard@microchip.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Linus Walleij <linusw@kernel.org>

Author: jeso-mchp

Documentation/devicetree/bindings/pinctrl/mscc,ocelot-pinctrl.yaml

@@ -14,6 +14,7 @@ properties:
   compatible:
     oneOf:
       - enum:
+          - microchip,lan96455f-pinctrl
           - microchip,lan966x-pinctrl
           - microchip,lan9691-pinctrl
           - microchip,sparx5-pinctrl
@@ -30,6 +31,11 @@ properties:
               - microchip,lan9693-pinctrl
               - microchip,lan9692-pinctrl
           - const: microchip,lan9691-pinctrl
+      - items:
+          - enum:
+              - microchip,lan96457f-pinctrl
+              - microchip,lan96459f-pinctrl
+          - const: microchip,lan96455f-pinctrl
 
   reg:
     items: