dt-bindings: net: ti: k3-am654-cpsw-nuss: Add J784S4 CPSW9G support

Update bindings for TI K3 J784S4 SoC which contains 9 ports (8 external
ports) CPSW9G module and add compatible for it.
Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Documentation/devicetree/bindings/net/ti,k3-am654-cpsw-nuss.yaml

@@ -59,6 +59,7 @@ properties:
       - ti,j7200-cpswxg-nuss
       - ti,j721e-cpsw-nuss
       - ti,j721e-cpswxg-nuss
+      - ti,j784s4-cpswxg-nuss
 
   reg:
     maxItems: 1
@@ -197,7 +198,9 @@ allOf:
         properties:
           compatible:
             contains:
-              const: ti,j721e-cpswxg-nuss
+              enum:
+                - ti,j721e-cpswxg-nuss
+                - ti,j784s4-cpswxg-nuss
     then:
       properties:
         ethernet-ports:
@@ -217,6 +220,7 @@ allOf:
               enum:
                 - ti,j7200-cpswxg-nuss
                 - ti,j721e-cpswxg-nuss
+                - ti,j784s4-cpswxg-nuss
     then:
       properties:
         ethernet-ports: