ARM: dts: omap3-gta04: Add display alias

Define alias for lcd display present on gta04 board.
Signed-off-by: Marek Belisko <marek@goldelico.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/omap3-gta04.dts

@@ -26,6 +26,10 @@ memory {
 		reg = <0x80000000 0x20000000>; /* 512 MB */
 	};
 
+	aliases {
+		display0 = &lcd;
+	};
+
 	gpio-keys {
 		compatible = "gpio-keys";