ARM: dts: am437x-sk-evm: get rid of phy_id property

The phy_id property is deprecated and phy-handle has to be used instead.
Signed-off-by: NGrygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

arch/arm/boot/dts/am437x-sk-evm.dts

@@ -799,16 +799,24 @@
 	pinctrl-0 = <&davinci_mdio_default>;
 	pinctrl-1 = <&davinci_mdio_sleep>;
 	status = "okay";
+
+	ethphy0: ethernet-phy@4 {
+		reg = <4>;
+	};
+
+	ethphy1: ethernet-phy@5 {
+		reg = <5>;
+	};
 };
 
 &cpsw_emac0 {
-	phy_id = <&davinci_mdio>, <4>;
+	phy-handle = <&ethphy0>;
 	phy-mode = "rgmii";
 	dual_emac_res_vlan = <1>;
 };
 
 &cpsw_emac1 {
-	phy_id = <&davinci_mdio>, <5>;
+	phy-handle = <&ethphy1>;
 	phy-mode = "rgmii";
 	dual_emac_res_vlan = <2>;
 };