ASoC: convert Microchip I2SMCC binding to yaml

This patch converts the Microchip I2SMCC bindings to DT schema format
using json-schema.

Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210301170905.835091-8-codrin.ciubotariu@microchip.com


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