ASoC: dt-bindings: wlf,wm8804: Convert to dtschema

Convert the WM8804 audio codec bindings to DT schema.

Signed-off-by: Animesh Agarwal <animeshagarwal28@gmail.com>
Cc: Daniel Baluta <daniel.baluta@nxp.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20240611122258.47406-1-animeshagarwal28@gmail.com


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