ASoC: codecs: pm4125: drop bogus container_of() error handling

ASoC: codecs: pm4125: drop bogus container_of() error handling

The dev_to_sdw_dev() helper uses container_of() to return the containing
soundwire device structure of its pointer argument and will never return
NULL.

Fixes: 8ad529484937 ("ASoC: codecs: add new pm4125 audio codec driver")
Cc: Alexey Klimov <alexey.klimov@linaro.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Alexey Klimov <alexey.klimov@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://patch.msgid.link/20251219142715.19254-2-johan@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>