dt-bindings: net: mediatek,net: add top-level constraints

Properties with variable number of items per each device are expected to
have widest constraints in top-level "properties:" block and further
customized (narrowed) in "if:then:".  Add missing top-level constraints
for clocks and clock-names.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20240818172905.121829-2-krzysztof.kozlowski@linaro.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>

Documentation/devicetree/bindings/net/mediatek,net.yaml

@@ -30,8 +30,13 @@ properties:
   reg:
     maxItems: 1
 
-  clocks: true
-  clock-names: true
+  clocks:
+    minItems: 2
+    maxItems: 24
+
+  clock-names:
+    minItems: 2
+    maxItems: 24
 
   interrupts:
     minItems: 1