ARM: Dove: Add the audio device to the Cubox DT

This patch activates the audio device of the Cubox.

The audio flow (pin mpp_audio1) is output on both I2S and S/PDIF.

The third si5351 clock (#2, pin mpp13) is used as the external clock.

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
diff --git a/arch/arm/boot/dts/dove-cubox.dts b/arch/arm/boot/dts/dove-cubox.dts
index 4af59b6..173d463 100644
--- a/arch/arm/boot/dts/dove-cubox.dts
+++ b/arch/arm/boot/dts/dove-cubox.dts
@@ -132,3 +132,11 @@
 		reg = <0>;
 	};
 };
+
+&audio1 {
+	status = "okay";
+	clocks = <&gate_clk 13>, <&si5351 2>;
+	clock-names = "internal", "extclk";
+	pinctrl-0 = <&pmx_audio1_i2s1_spdifo &pmx_audio1_extclk>;
+	pinctrl-names = "default";
+};