dt-bindings: net: dsa: b53: add more 63xx SoCs

BCM6318, BCM6362 and BCM63268 are SoCs with a B53 MMAP switch.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Documentation/devicetree/bindings/net/dsa/brcm,b53.yaml

@@ -57,8 +57,11 @@ properties:
       - items:
           - enum:
               - brcm,bcm3384-switch
+              - brcm,bcm6318-switch
               - brcm,bcm6328-switch
+              - brcm,bcm6362-switch
               - brcm,bcm6368-switch
+              - brcm,bcm63268-switch
           - const: brcm,bcm63xx-switch
 
 required: