ALSA: hda: export snd_hda_codec_cleanup_for_unbind()

ALSA: hda: export snd_hda_codec_cleanup_for_unbind()

To avoid duplicated code for cleanup, and match the already exported
snd_hda_codec_pcm_new(), also export snd_hda_codec_cleanup_for_unbind().

Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20200715174551.3730165-2-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>