ASoC: sunxi: Add bindings for A23/A33/H3 codec's analog path controls
The internal codec on A23/A33/H3 is split into 2 parts. The
analog path controls are routed through an embedded custom register
bus accessed through the PRCM block.
The SoCs share a common set of inputs, outputs, and audio paths.
The following table lists the differences.
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| Feature \ SoC | A23 | A33 | H3 |
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| Headphone | v | v | |
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| Line Out | | | v |
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| Phone In/Out | v | v | |
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Add a binding for this hardware.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>