ASoC: dt-bindings: tegra20-ac97: convert to dt schema

Convert NVIDIA Tegra20 AC97 binding to DT schema.
Change -gpio to -gpios in schema as "gpio" suffix is deprecated.

Signed-off-by: Mohammad Shehar Yaar Tausif <sheharyaar48@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240423115749.15786-1-sheharyaar48@gmail.com


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