ARM: dts: sun8i: Add ethernet0 alias in Nanopi NEO's device tree

This is required for U-Boot to generate a MAC address for it
automatically.
(Without this, the MAC address will be random on each boot.)

Signed-off-by: Baltazár Radics <[e-mail]>
Acked-by: Jernej Skrabec <[e-mail]>
Signed-off-by: Maxime Ripard <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

arch/arm/boot/dts/sun8i-h3-nanopi-neo.dts

···
 / {
 	model = "FriendlyARM NanoPi NEO";
 	compatible = "friendlyarm,nanopi-neo", "allwinner,sun8i-h3";
+
+	aliases {
+		ethernet0 = &emac;
+	};
 };
 
 &ehci0 {