ARM: dts: imx53-qsb: SDHC3 is connected in 8-bit mode

SDHC3 is 8 bit-wide, so pass the bus-width property to reflect that.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

arch/arm/boot/dts/imx53-qsb.dts

@@ -136,6 +136,7 @@ &esdhc3 {
 	pinctrl-0 = <&pinctrl_esdhc3_1>;
 	cd-gpios = <&gpio3 11 0>;
 	wp-gpios = <&gpio3 12 0>;
+	bus-width = <8>;
 	status = "okay";
 };