msm8916 digital audio CODEC

## Bindings for codec core in lpass:

Required properties
 - compatible = "qcom,msm8916-wcd-digital-codec";
 - reg: address space for lpass codec.
 - clocks: Handle to mclk and ahbclk
 - clock-names: should be "mclk", "ahbix-clk".

Example:

audio-codec@771c000{
	compatible = "qcom,msm8916-wcd-digital-codec";
	reg = <0x0771c000 0x400>;
	clocks = <&gcc GCC_ULTAUDIO_AHBFABRIC_IXFABRIC_CLK>,
		 <&gcc GCC_CODEC_DIGCODEC_CLK>;
	clock-names = "ahbix-clk", "mclk";
	#sound-dai-cells = <1>;
};
