ASoC: dt-bindings: davinci-mcbsp: convert McBSP bindings to yaml schema

Convert the binding for McBSP controllers for TI SoCs from txt
to YAML schema.

Add properties 'clocks', 'clock-names', 'power-domains' and
'#sound-dai-cells' which were missing from the txt file.
Add '#sound-dai-cells' and 'clocks' in the example which were missing
from the txt file.

Signed-off-by: Bastien Curutchet <bastien.curutchet@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Peter Ujfalusi <peter.ujfalusi@gmail.com>
Link: https://msgid.link/r/20240402071213.11671-2-bastien.curutchet@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>