ALSA: hda/conexant: add a new hda codec CX11970

The current kernel does not support the cx11970 codec chip.
Add a codec configuration item to kernel.

[ Minor coding style fix by tiwai ]

Signed-off-by: bo liu <bo.liu@senarytech.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20201229035226.62120-1-bo.liu@senarytech.com


Signed-off-by: Takashi Iwai <tiwai@suse.de>