dt-bindings: phy: cadence-torrent: enable PHY_TYPE_USXGMII

The Cadence Torrent SERDES supports USXGMII protocol. Hence, update the
bindings to allow PHY_TYPE_USXGMII. Since PHY_TYPE_USXGMII has the value
of "12" while the existing maximum allowed PHY TYPE is "9", switch back to
using "enum" property in the bindings to account for this discontinuity.

Signed-off-by: Siddharth Vadapalli <[email protected]>
Acked-by: Rob Herring (Arm) <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Vinod Koul <[email protected]>

Author: Siddharth-Vadapalli-at-TI

Documentation/devicetree/bindings/phy/phy-cadence-torrent.yaml

@@ -99,8 +99,7 @@ patternProperties:
           Specifies the type of PHY for which the group of PHY lanes is used.
           Refer include/dt-bindings/phy/phy.h. Constants from the header should be used.
         $ref: /schemas/types.yaml#/definitions/uint32
-        minimum: 1
-        maximum: 9
+        enum: [1, 2, 3, 4, 5, 6, 7, 8, 9, 12]
 
       cdns,num-lanes:
         description: