sunxi: Add EMAC ethernet0 alias for H3 dtsi

The sunxi ethernet address generation code looks for ethernet[0-3]
aliases to find ethernet controllers to generate MAC addresses for.

Without a valid address, the driver fails to register.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
diff --git a/arch/arm/dts/sun8i-h3.dtsi b/arch/arm/dts/sun8i-h3.dtsi
index 72c0920..84e52b9 100644
--- a/arch/arm/dts/sun8i-h3.dtsi
+++ b/arch/arm/dts/sun8i-h3.dtsi
@@ -48,6 +48,10 @@
 / {
 	interrupt-parent = <&gic>;
 
+	aliases {
+		ethernet0 = <&emac>;
+	};
+
 	cpus {
 		#address-cells = <1>;
 		#size-cells = <0>;