ALSA: hda/ca0132 - Fix memory leak at error path

The CA0132 codec driver doesn't call the free function at its error
path of the probe, which leaves the allocated memory.  Call
ca0132_free() properly at the error handling.

Fixes: a73d511c

 ("ALSA: hda/ca0132: Add unsol handler for DSP and jack detection")
Signed-off-by: Takashi Iwai <tiwai@suse.de>