ASoC: tlv320aic32x4: DT support

Add DT support for this codec. The bindings differ a bit from the aic3x
codec bindings, so I created a new binding documentation.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2 files changed