sound: rockchip: Add sound support for jerry

Jerry uses a max98090 audio codec and the internal SoC I2S peripheral.
Enable sound support and add the required device-tree pieces.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
diff --git a/arch/arm/dts/rk3288-veyron-jerry.dts b/arch/arm/dts/rk3288-veyron-jerry.dts
index 42f52d4..c251d9d 100644
--- a/arch/arm/dts/rk3288-veyron-jerry.dts
+++ b/arch/arm/dts/rk3288-veyron-jerry.dts
@@ -52,6 +52,18 @@
 		vin-supply = <&vcc33_sys>;
 		startup-delay-us = <15000>;
 	};
+
+	sound {
+		compatible = "rockchip,audio-max98090-jerry";
+
+		cpu {
+			sound-dai = <&i2s 0>;
+		};
+
+		codec {
+			sound-dai = <&max98090 0>;
+		};
+	};
 };
 
 &dmc {