ARM: dts: kirkwood: fix audio for OpenRD clients

Fix audio on kirkwood-openrd-client:

1) The audio-controller was left disabled.

2) The probe fails because cs42l51 is missing #sound-dai-cells.

	/sound/simple-audio-card,codec: could not get #sound-dai-cells for /ocp@f1000000/i2c@11000/cs42l51@4a
	asoc-simple-card sound: parse error -22
	asoc-simple-card: probe of sound failed with error -22

3) The mapping is incorrect:

	asoc-simple-card sound: cs42l51-hifi <-> spdif mapping ok

   should be:

	asoc-simple-card sound: cs42l51-hifi <-> i2s mapping ok
Reported-by: Rick Thomas <rbthomas@pobox.com>
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Rick Thomas <rbthomas@pobox.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>

arch/arm/boot/dts/kirkwood-openrd-client.dts

@@ -20,6 +20,9 @@ / {
 	compatible = "marvell,openrd-client", "marvell,openrd", "marvell,kirkwood-88f6281", "marvell,kirkwood";
 
 	ocp@f1000000 {
+		audio-controller@a0000 {
+			status = "okay";
+		};
 		i2c@11000 {
 			status = "okay";
 			clock-frequency = <400000>;
@@ -27,6 +30,7 @@ i2c@11000 {
 			cs42l51: cs42l51@4a {
 				compatible = "cirrus,cs42l51";
 				reg = <0x4a>;
+				#sound-dai-cells = <0>;
 			};
 		};
 	};
@@ -37,7 +41,7 @@ sound {
 		simple-audio-card,mclk-fs = <256>;
 
 		simple-audio-card,cpu {
-			sound-dai = <&audio0>;
+			sound-dai = <&audio0 0>;
 		};
 
 		simple-audio-card,codec {

arch/arm/boot/dts/kirkwood.dtsi

@@ -381,7 +381,7 @@ sata_phy1: sata-phy@84000 {
 
 		audio0: audio-controller@a0000 {
 			compatible = "marvell,kirkwood-audio";
-			#sound-dai-cells = <0>;
+			#sound-dai-cells = <1>;
 			reg = <0xa0000 0x2210>;
 			interrupts = <24>;
 			clocks = <&gate_clk 9>;