ASoC: codecs: wcd-mbhc: cleanup swap_gnd_mic api

ASoC: codecs: wcd-mbhc: cleanup swap_gnd_mic api

Remove confusing and unused argument in swap_gnd_mic api, the second
argument active is not really used, and always set to true in the mbhc
drivers.

The callback itself is used to toggle the gnd_mic lines when a cross
connection is detected by mbhc circuits, so there is no need of this
argument.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://patch.msgid.link/20250327100633.11530-4-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>