[ALSA] hda-codec - Add support for Asus A8JN Laptop

This patch adds support for the Asus A8JN Laptop.
Other modes were tested, this one worked best.

Signed-off-by: Tobin Davis <tdavis@dsl-only.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>