ARM: dts: imx6qdl-wandboard: Add stdout-path

Setting a stdout-path in the .dtb is convenient because then the user
gets a serial console on the RS-232 connector without any extra effort
of figuring out the relevant 'console=' boot parameter.
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Tuomas Tynkkynen <tuomas@tuxera.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx6qdl-wandboard.dtsi

@@ -8,6 +8,10 @@
 #include <dt-bindings/gpio/gpio.h>
 
 / {
+	chosen {
+		stdout-path = &uart1;
+	};
+
 	sound {
 		compatible = "fsl,imx6-wandboard-sgtl5000",
 			     "fsl,imx-audio-sgtl5000";