ASoC: dt-bindings: omap-mcpdm: Convert to DT schema

ASoC: dt-bindings: omap-mcpdm: Convert to DT schema

Convert the OMAP4+ McPDM bindings from txt to yaml (dtschema).
Drop ti,hwmods property as it is not needed since the sysc conversion.
Add dma, dma-names, reg-names properties to match the DTS so as to not
break the already existing ABI.
Also update example node to match the existing node in the DTS.

Signed-off-by: Mithil Bavishi <bavishimithil@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240608095305.2887-1-bavishimithil@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>