dts: arm: renesas: ra: ra6: add Ethernet support

Define Ethernet and MDIO nodes in the RA6 Cortex-M33 SoC device tree
files in a similar manner to the RA8 SoC device tree files.

Removed those nodes from R6E2 SoC as it does not have Ethernet support.

Signed-off-by: Martino Facchin <m.facchin@arduino.cc>

Author: facchinm

dts/arm/renesas/ra/ra6/r7fa6e2bx.dtsi

@@ -17,6 +17,8 @@
 /delete-node/ &adc1;
 /delete-node/ &usbfs;
 /delete-node/ &usbfs_phy;
+/delete-node/ ð
+/delete-node/ &mdio;
 
 / {
 	soc {

dts/arm/renesas/ra/ra6/ra6-cm33-common.dtsi

@@ -536,6 +536,22 @@
 			clocks = <&pclkb 0 0>;
 			status = "disabled";
 		};
+
+		eth: ethernet@40114100 {
+			compatible = "renesas,ra-ethernet";
+			reg = <0x40114100 0xfc>;
+			interrupts = <51 12>;
+			local-mac-address = [00 11 22 33 44 55];
+			phy-connection-type = "rmii";
+			status = "disabled";
+		};
+
+		mdio: mdio {
+			compatible = "renesas,ra-mdio";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
 	};
 
 	usbfs_phy: usbfs-phy {