ASoC: codecs: wcd939x: fix regmap leak on probe failure

ASoC: codecs: wcd939x: fix regmap leak on probe failure

commit 86dc090f737953f16f8dc60c546ae7854690d4f6 upstream.

The soundwire regmap that may be allocated during probe is not freed on
late probe failures.

Add the missing error handling.

Fixes: be2af391cea0 ("ASoC: codecs: Add WCD939x Soundwire devices driver")
Cc: stable@vger.kernel.org	# 6.9
Cc: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20251127135057.2216-1-johan@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>