ARM: dts: rockchip: Add HDMI audio support to rk3288-veyron-mickey

Add HDMI audio support to veyron-mickey. The sound card should expose
one audio device for HDMI.
Signed-off-by: NCheng-Yi Chiang <cychiang@chromium.org>
Link: https://lore.kernel.org/r/20191028071930.145899-7-cychiang@chromium.orgSigned-off-by: NHeiko Stuebner <heiko@sntech.de>

arch/arm/boot/dts/rk3288-veyron-mickey.dts

@@ -28,6 +28,13 @@
 		regulator-boot-on;
 		vin-supply = <&vcc33_sys>;
 	};
+
+	sound {
+		compatible = "rockchip,rockchip-audio-max98090";
+		rockchip,model = "VEYRON-HDMI";
+		rockchip,hdmi-codec = <&hdmi>;
+		rockchip,i2s-controller = <&i2s>;
+	};
 };
 
 &cpu_thermal {