[ALSA] hda-codec - Add missing model names for ALC882 codecs

Added the missing model option strings for ALC882 codecs.
Also added the corresponding description in ALSA-Configuration.txt.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

sound/pci/hda/patch_realtek.c

@@ -5585,6 +5585,9 @@ static const char *alc882_models[ALC882_MODEL_LAST] = {
 	[ALC882_6ST_DIG]	= "6stack-dig",
 	[ALC882_ARIMA]		= "arima",
 	[ALC882_W2JC]		= "w2jc",
+	[ALC882_TARGA]		= "targa",
+	[ALC882_ASUS_A7J]	= "asus-a7j",
+	[ALC882_ASUS_A7M]	= "asus-a7m",
 	[ALC885_MACPRO]		= "macpro",
 	[ALC885_MBP3]		= "mbp3",
 	[ALC885_IMAC24]		= "imac24",