ASoC: dt-bindings: add entry for TAS5720A-Q1 driver

Add entry for the TAS5720A-Q1 driver in the dt-bindings doc.

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Steffen Aschbacher <steffen.aschbacher@stihl.de>
Signed-off-by: Alexandru Ardelean <alex@shruggie.ro>
Link: https://lore.kernel.org/r/20230128082744.41849-4-alex@shruggie.ro


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