dt-bindings: net: lantiq-xrx200-net: convert to the json-schema

Convert the Lantiq PMAC Device Tree binding documentation to json-schema.
Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>

Documentation/devicetree/bindings/net/lantiq,xrx200-net.txt

-Lantiq xRX200 GSWIP PMAC Ethernet driver
-==================================
-
-Required properties:
-
-- compatible	: "lantiq,xrx200-net" for the PMAC of the embedded
-		: GSWIP in the xXR200
-- reg		: memory range of the PMAC core inside of the GSWIP core
-- interrupts	: TX and RX DMA interrupts. Use interrupt-names "tx" for
-		: the TX interrupt and "rx" for the RX interrupt.
-
-Example:
-
-ethernet@e10b308 {
-	#address-cells = <1>;
-	#size-cells = <0>;
-	compatible = "lantiq,xrx200-net";
-	reg = <0xe10b308 0xcf8>;
-	interrupts = <73>, <72>;
-	interrupt-names = "tx", "rx";
-};

Documentation/devicetree/bindings/net/lantiq,xrx200-net.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/lantiq,xrx200-net.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Lantiq xRX200 GSWIP PMAC Ethernet driver
+
+maintainers:
+  - Hauke Mehrtens <hauke@hauke-m.de>
+
+properties:
+  $nodename:
+    pattern: "^ethernet@[0-9a-f]+$"
+
+  compatible:
+    const: lantiq,xrx200-net
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    items:
+      - description: TX interrupt
+      - description: RX interrupt
+
+  interrupt-names:
+    items:
+      - const: tx
+      - const: rx
+
+  '#address-cells':
+    const: 1
+
+  '#size-cells':
+    const: 0
+
+required:
+  - compatible
+  - reg
+  - interrupt-parent
+  - interrupts
+  - interrupt-names
+  - "#address-cells"
+  - "#size-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    ethernet@e10b308 {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        compatible = "lantiq,xrx200-net";
+        reg = <0xe10b308 0xcf8>;
+        interrupt-parent = <&icu0>;
+        interrupts = <73>, <72>;
+        interrupt-names = "tx", "rx";
+    };