ARM: dts: sun7i: Enable gmac on Wits Pro A20 DKT

The Wits Pro A20 DKT has a gbit ethernet port, enable it.

Signed-off-by: Hans de Goede <[e-mail]>
Acked-by: Chen-Yu Tsai <[e-mail]>
Signed-off-by: Maxime Ripard <[e-mail]>

arch/arm/boot/dts/sun7i-a20-wits-pro-a20-dkt.dts

···
 	status = "okay";
 };
 
+&gmac {
+	pinctrl-names = "default";
+	pinctrl-0 = <&gmac_pins_rgmii_a>;
+	phy = <&phy1>;
+	phy-mode = "rgmii";
+	status = "okay";
+
+	phy1: ethernet-phy@1 {
+		reg = <1>;
+	};
+};
+
 &i2c0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&i2c0_pins_a>;