ayufan: dts: update sun50i-a64 dts

Author: ayufan

arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi

@@ -42,6 +42,11 @@
 		};
 	};
 
+	aliases {
+		// This allows setting ethaddr from u-boot command line
+		ethernet0 = &emac;
+	};
+
 	cpus {
 		#address-cells = <1>;
 		#size-cells = <0>;