dt-bindings: net: convert lpc-eth.txt yaml format

Convert lpc-eth.txt yaml format.

Signed-off-by: Frank Li <[e-mail]>
Reviewed-by: Rob Herring (Arm) <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Jakub Kicinski <[e-mail]>

Documentation/devicetree/bindings/net/lpc-eth.txt

···
-* NXP LPC32xx SoC Ethernet Controller
-
-Required properties:
-- compatible: Should be "nxp,lpc-eth"
-- reg: Address and length of the register set for the device
-- interrupts: Should contain ethernet controller interrupt
-
-Optional properties:
-- phy-mode: See ethernet.txt file in the same directory. If the property is
-  absent, "rmii" is assumed.
-- use-iram: Use LPC32xx internal SRAM (IRAM) for DMA buffering
-
-Optional subnodes:
-- mdio : specifies the mdio bus, used as a container for phy nodes according to
-  phy.txt in the same directory
-
-
-Example:
-
-	mac: ethernet@31060000 {
-		compatible = "nxp,lpc-eth";
-		reg = <0x31060000 0x1000>;
-		interrupt-parent = <&mic>;
-		interrupts = <29 0>;
-
-		phy-mode = "rmii";
-		use-iram;
-	};

Documentation/devicetree/bindings/net/nxp,lpc-eth.yaml

···
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/nxp,lpc-eth.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP LPC32xx SoC Ethernet Controller
+
+maintainers:
+  - Frank Li <[e-mail]>
+
+properties:
+  compatible:
+    const: nxp,lpc-eth
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  use-iram:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description: Use LPC32xx internal SRAM (IRAM) for DMA buffering
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+allOf:
+  - $ref: ethernet-controller.yaml#
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    ethernet@31060000 {
+        compatible = "nxp,lpc-eth";
+        reg = <0x31060000 0x1000>;
+        interrupt-parent = <&mic>;
+        interrupts = <29 0>;
+        phy-mode = "rmii";
+        use-iram;
+    };