ARM: imx23-olinuxino.dts: Add AUART0 support

Add AUART0 support.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

arch/arm/boot/dts/imx23-olinuxino.dts

@@ -39,6 +39,12 @@
 				pinctrl-0 = <&duart_pins_a>;
 				status = "okay";
 			};
+
+			auart0: serial@8006c000 {
+				pinctrl-names = "default";
+				pinctrl-0 = <&auart0_2pins_a>;
+				status = "okay";
+			};
 		};
 	};
 };