dt-bindings: net: ti: k3-am654-cpsw-nuss: Add ti,j722s-cpsw-nuss compatible

The J722S CPSW3G is mostly identical to the AM64's, but additionally
supports SGMII. The AM64 compatible ti,am642-cpsw-nuss is used as a
fallback.

Signed-off-by: Nora Schiffer <nora.schiffer@ew.tq-group.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://patch.msgid.link/191e9f7e3a6c14eabe891a98c5fb646766479c0a.1775558273.git.nora.schiffer@ew.tq-group.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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

@@ -53,13 +53,18 @@ properties:
   "#size-cells": true
 
   compatible:
-    enum:
-      - ti,am642-cpsw-nuss
-      - ti,am654-cpsw-nuss
-      - ti,j7200-cpswxg-nuss
-      - ti,j721e-cpsw-nuss
-      - ti,j721e-cpswxg-nuss
-      - ti,j784s4-cpswxg-nuss
+    oneOf:
+      - enum:
+          - ti,am642-cpsw-nuss
+          - ti,am654-cpsw-nuss
+          - ti,j7200-cpswxg-nuss
+          - ti,j721e-cpsw-nuss
+          - ti,j721e-cpswxg-nuss
+          - ti,j784s4-cpswxg-nuss
+      - items:
+          - enum:
+              - ti,j722s-cpsw-nuss
+          - const: ti,am642-cpsw-nuss
 
   reg:
     maxItems: 1