linux-phytec-ti

ASoC: uniphier: add DT bindings documentation for UniPhier AIO

This patch adds DT binding documentation for UniPhier
AIO audio subsystem.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Katsuhiro Suzuki <suzuki.katsuhiro@socionext.com>
Signed-off-by: Mark Brown <broonie@kernel.org>