arm64: dts: rp1.dtsi: Add #sound-dai-cells property for rp1-audio-out

Signed-off-by: Nick Hollinghurst <[email protected]>

Author: njhollinghurst

arch/arm64/boot/dts/broadcom/rp1.dtsi

@@ -392,6 +392,7 @@
 			dma-names = "tx";
 			pinctrl-names = "default";
 			pinctrl-0 = <&rp1_audio_out_12_13>;
+			#sound-dai-cells = <0>;
 			status = "disabled";
 		};