ARM: dts: imx6qdl-gw551x: fix audio SSI

The audio codec on the GW551x routes to ssi1.  It fixes audio capture on
the device.

Cc: stable@vger.kernel.org
Fixes: 3117e851 ("ARM: dts: imx: Add TDA19971 HDMI Receiver to GW551x")
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx6qdl-gw551x.dtsi

@@ -110,7 +110,7 @@ sound-digital {
 		simple-audio-card,frame-master = <&sound_codec>;
 
 		sound_cpu: simple-audio-card,cpu {
-			sound-dai = <&ssi2>;
+			sound-dai = <&ssi1>;
 		};
 
 		sound_codec: simple-audio-card,codec {