ARM: dts: imx6ull-colibri: add phy-supply to fec

This adds the proper phy-supply to the FEC. This supply is actually
switched by a clock that is now properly stated. This has the advantage
to add a delay for that particular regulator which is needed.

Signed-off-by: Philippe Schenker <[e-mail]>
Signed-off-by: Denys Drozdov <[e-mail]>
Signed-off-by: Marcel Ziswiler <[e-mail]>
Signed-off-by: Shawn Guo <[e-mail]>

arch/arm/boot/dts/imx6ull-colibri.dtsi

···
 		states = <1800000 0x1 3300000 0x0>;
 		vin-supply = <&reg_module_3v3>;
 	};
+
+	reg_eth_phy: regulator-eth-phy {
+		compatible = "regulator-fixed-clock";
+		regulator-boot-on;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-name = "+V3.3_ETH";
+		regulator-type = "voltage";
+		vin-supply = <&reg_module_3v3>;
+		clocks = <&clks IMX6UL_CLK_ENET2_REF_125M>;
+		startup-delay-us = <150000>;
+	};
 };
 
 &adc1 {
···
 	pinctrl-1 = <&pinctrl_enet2_sleep>;
 	phy-mode = "rmii";
 	phy-handle = <&ethphy1>;
+	phy-supply = <&reg_eth_phy>;
 	status = "okay";
 
 	mdio {