ASoC: dt-bindings: tegra20-das: Convert to schema

Convert NVIDIA Tegra20 DAS (Digital Audio Switch) binding to schema.

Signed-off-by: Mohammad Shehar Yaar Tausif <sheharyaar48@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20240418163326.58365-1-sheharyaar48@gmail.com


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