dt-bindings: net: brcm,unimac-mdio: Add asp-v2.0

The ASP 2.0 Ethernet controller uses a brcm unimac.
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Justin Chen <justin.chen@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Documentation/devicetree/bindings/net/brcm,unimac-mdio.yaml

@@ -22,6 +22,8 @@ properties:
       - brcm,genet-mdio-v3
       - brcm,genet-mdio-v4
       - brcm,genet-mdio-v5
+      - brcm,asp-v2.0-mdio
+      - brcm,asp-v2.1-mdio
       - brcm,unimac-mdio
 
   reg: