WM8974 audio CODEC

This device supports I2C only.

Required properties:

  - compatible : "wlf,wm8974"
  - reg : the I2C address of the device.

Example:

audio_codec: wm8974@1a {
	compatible = "wlf,wm8974";
	reg = <0x1a>;
	status = "okay";
};
