arm64: tegra: Rename Ethernet PHY nodes

Name the Ethernet PHY device tree nodes as expected by the DT schema.
Signed-off-by: Thierry Reding <treding@nvidia.com>

arch/arm64/boot/dts/nvidia/tegra186-p3310.dtsi

@@ -44,7 +44,7 @@ mdio {
 			#address-cells = <1>;
 			#size-cells = <0>;
 
-			phy: phy@0 {
+			phy: ethernet-phy@0 {
 				compatible = "ethernet-phy-ieee802.3-c22";
 				reg = <0x0>;
 				interrupt-parent = <&gpio>;

arch/arm64/boot/dts/nvidia/tegra186-p3509-0000+p3636-0001.dts

@@ -46,7 +46,7 @@ mdio {
 			#address-cells = <1>;
 			#size-cells = <0>;
 
-			phy: phy@0 {
+			phy: ethernet-phy@0 {
 				compatible = "ethernet-phy-ieee802.3-c22";
 				reg = <0x0>;
 				interrupt-parent = <&gpio_aon>;

arch/arm64/boot/dts/nvidia/tegra194-p2888.dtsi

@@ -39,7 +39,7 @@ mdio {
 				#address-cells = <1>;
 				#size-cells = <0>;
 
-				phy: phy@0 {
+				phy: ethernet-phy@0 {
 					compatible = "ethernet-phy-ieee802.3-c22";
 					reg = <0x0>;
 					interrupt-parent = <&gpio>;

arch/arm64/boot/dts/nvidia/tegra194-p3668.dtsi

@@ -36,7 +36,7 @@ mdio {
 				#address-cells = <1>;
 				#size-cells = <0>;
 
-				phy: phy@0 {
+				phy: ethernet-phy@0 {
 					compatible = "ethernet-phy-ieee802.3-c22";
 					reg = <0x0>;
 					interrupt-parent = <&gpio>;