MT8173 with RT5650 RT5676 CODECS

Required properties:
- compatible : "mediatek,mt8173-rt5650-rt5676"
- mediatek,audio-codec: the phandles of rt5650 and rt5676 codecs

Example:

	sound {
		compatible = "mediatek,mt8173-rt5650-rt5676";
		mediatek,audio-codec = <&rt5650 &rt5676>;
	};