ARM: dts: r8a7742: Add Ether support

Define the generic R8A7742 part of the Ether device node.

Signed-off-by: Lad Prabhakar <[e-mail]>
Reviewed-by: Marian-Cristian Rotariu <[e-mail]>
Reviewed-by: Wolfram Sang <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Geert Uytterhoeven <[e-mail]>

arch/arm/boot/dts/r8a7742.dtsi

···
 			status = "disabled";
 		};
 
+		ether: ethernet@ee700000 {
+			compatible = "renesas,ether-r8a7742",
+				     "renesas,rcar-gen2-ether";
+			reg = <0 0xee700000 0 0x400>;
+			interrupts = <GIC_SPI 162 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 813>;
+			power-domains = <&sysc R8A7742_PD_ALWAYS_ON>;
+			resets = <&cpg 813>;
+			phy-mode = "rmii";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
 		gic: interrupt-controller@f1001000 {
 			compatible = "arm,gic-400";
 			#interrupt-cells = <3>;