ASoC: dt-bindings: tegra: Add graph bindings

Add device tree binding properties of generic graph to ASoC component
devices. This allows to define audio ports out of these components or
DAIs and audio graph based sound card can be realised with this.

Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://lore.kernel.org/r/1611048496-24650-2-git-send-email-spujar@nvidia.com


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