Sound card of Exynos

This device is a sound card of Exynos AP

Required properties:

- compatible : "samsung,exynos-sound".

- clock-names : "xclkout"

- clocks : phandle to clock

- MICBIAS1-supply : phandle to regulator for micbias1

- MICBIAS2-supply : phandle to regulator for micbias2

- MICBIAS3-supply : phandle to regulator for micbias3

- samsung,routing : routing for current machine

- samsung,codec : phandle to codec devices

- samsung,prefix : prefix for the codec devices

- samsung,aux : phandle to sound devices but not in the DAI link definitions

- rdma0, rdma1, ... : DAI link definitions.

Optional properties: no optional property.