NVIDIA Tegra30 HDA controller

Required properties:
- compatible : "nvidia,tegra30-hda"
- reg : Should contain the HDA registers location and length.
- interrupts : The interrupt from the hda controller.

Example:

hda@70030000 {
	compatible = "nvidia,tegra-hda";
	reg = <0x0 0x70030000 0x10000>;
	interrupts = <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>;
};