ARM: zynq: DT: Add aliases node

Add aliases node to DTs.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/arch/arm/boot/dts/zynq-zed.dts b/arch/arm/boot/dts/zynq-zed.dts
index e20956e..5658bc8 100644
--- a/arch/arm/boot/dts/zynq-zed.dts
+++ b/arch/arm/boot/dts/zynq-zed.dts
@@ -18,6 +18,11 @@
 	model = "Zynq Zed Development Board";
 	compatible = "xlnx,zynq-zed", "xlnx,zynq-7000";
 
+	aliases {
+		ethernet0 = &gem0;
+		serial0 = &uart1;
+	};
+
 	memory {
 		device_type = "memory";
 		reg = <0x0 0x20000000>;