ASoC: dt-bindings: adi,adau17x1: Convert to DT schema

Convert the binding document for adi,adau17x1 from txt to yaml
so one could validate dt-entries correctly and any future additions
can go into yaml format. Add address and size cells to example to
prevent errors regarding reg format.

Signed-off-by: Vijaya Anand <sunrockers8@gmail.com>
Cc: Daniel Baluta <daniel.baluta@nxp.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230315231055.3067-1-sunrockers8@gmail.com


Signed-off-by: Mark Brown <broonie@kernel.org>