ARM: dts: sun6i: sina31s: Enable internal audio codec

The SinA31s routes the SoC's LINEOUT pins to a line out jack, and MIC1
to a microphone jack, with MBIAS providing phantom power.
Signed-off-by: NChen-Yu Tsai <wens@csie.org>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>

arch/arm/boot/dts/sun6i-a31s-sina31s.dts

@@ -65,6 +65,14 @@
 	};
 };
 
+&codec {
+	allwinner,audio-routing =
+		"Line Out", "LINEOUT",
+		"MIC1", "Mic",
+		"Mic",	"MBIAS";
+	status = "okay";
+};
+
 &ehci0 {
 	/* USB 2.0 4 port hub IC */
 	status = "okay";