ARM: dts: imx6dl-eckelmann-ci4x10: configure ethernet reference clock parent

On this board the PHY is the ref clock provider. So, configure ethernet
reference clock as input.
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx6dl-eckelmann-ci4x10.dts

@@ -28,6 +28,7 @@ rmii_clk: clock-rmii {
 		compatible = "fixed-clock";
 		#clock-cells = <0>;
 		clock-frequency = <50000000>;
+		clock-output-names = "enet_ref_pad";
 	};
 
 	reg_usb_h1_vbus: regulator-usb-h1-vbus {
@@ -64,6 +65,13 @@ &can2 {
 	status = "okay";
 };
 
+&clks {
+	clocks = <&rmii_clk>;
+	clock-names = "enet_ref_pad";
+	assigned-clocks = <&clks IMX6QDL_CLK_ENET_REF_SEL>;
+	assigned-clock-parents = <&rmii_clk>;
+};
+
 &ecspi2 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_ecspi2>;
@@ -297,11 +305,6 @@ &fec {
 	phy-mode = "rmii";
 	phy-reset-gpios = <&gpio1 18 GPIO_ACTIVE_LOW>;
 	phy-handle = <&phy>;
-	clocks = <&clks IMX6QDL_CLK_ENET>,
-		 <&clks IMX6QDL_CLK_ENET>,
-		 <&rmii_clk>,
-		 <&clks IMX6QDL_CLK_ENET_REF>;
-	clock-names = "ipg", "ahb", "ptp", "enet_out";
 	status = "okay";
 
 	mdio {