ALSA: hda - Add Creative CA0132 HDA codec support

Create patch_ca0132.c, to add support for devices featuring the
Creative CA0132 HD-audio codec.

This driver implements :-
* 1 playback subdevice to headphone and speaker
* 2 capture subdevices:
   i - Mic-in
   ii- Line-in
* mixer device

Advanced DSP features are not yet included.
Developed and maintained by Creative Labs, Inc.

Signed-off-by: Ian Minett <ian_minett@creativelabs.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>