ARM: dts: am335x-phycore-som: Update ethernet phy node

Update ethernet phy0 node to use phy-handle now.
Signed-off-by: Teresa Remmet <t.remmet@phytec.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/am335x-phycore-som.dtsi

@@ -78,7 +78,7 @@ AM33XX_IOPAD(0x94c, PIN_OUTPUT_PULLUP | MUX_MODE0)			/* mdio_clk.mdio_clk */
 };
 
 &cpsw_emac0 {
-	phy_id = <&davinci_mdio>, <0>;
+	phy-handle = <&phy0>;
 	phy-mode = "rmii";
 	dual_emac_res_vlan = <1>;
 };
@@ -87,6 +87,10 @@ &davinci_mdio {
 	pinctrl-names = "default";
 	pinctrl-0 = <&mdio_pins>;
 	status = "okay";
+
+	phy0: ethernet-phy@0 {
+		reg = <0>;
+	};
 };
 
 &mac {