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.dtsi b/arch/arm/dts/rk3288-veyron.dtsi
index 92b6887..49ba3f3 100644
--- a/arch/arm/dts/rk3288-veyron.dtsi
+++ b/arch/arm/dts/rk3288-veyron.dtsi
@@ -484,6 +484,7 @@
 	max98090: max98090@10 {
 		compatible = "maxim,max98090";
 		reg = <0x10>;
+		#sound-dai-cells = <0>;
 		interrupt-parent = <&gpio6>;
 		interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
 		pinctrl-names = "default";