ALSA: hda/realtek - Rewrite ALC880 model=asus-w1v with auto-parser

ASUS W1V has a sane pin-config table set by BIOS.  The only missing piece
is the setup of GPIO1.

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

Documentation/sound/alsa/HD-Audio-Models.txt

@@ -9,7 +9,6 @@ ALC880
   6stack	6-jack in back, 2-jack in front
   6stack-digout	6-jack with a SPDIF out
   asus		3-jack (ASUS Mobo)
-  asus-w1v	ASUS W1V
   asus-dig	ASUS with SPDIF out
   asus-dig2	ASUS with SPDIF out (using GPIO2)
   test		for testing/debugging purpose, almost all controls can be