ASoC: dt-bindings: samsung,aries-wm8994: require sound-dai property

The cpu and codec nodes must provide sound-dai property.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220129122357.45545-2-krzysztof.kozlowski@canonical.com


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