[ALSA] [snd-hda-intel] fix sound on some Asus W6A chips

This patch adds support in ALSA snd-hda-intel driver for Asus W6A
motherboard as reported in MDV Bugzilla #19962
(see http://qa.mandriva.com/show_bug.cgi?id=19962)

Signed-off-by: Danny Tholen <danny@mailmij.org>
Signed-off-by: Thomas Backlund <tmb@mandriva.org>
Signed-off-by: Thierry Vignaud <tvignaud@mandriva.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

sound/pci/hda/patch_realtek.c

@@ -2240,6 +2240,7 @@ static struct hda_board_config alc880_cfg_tbl[] = {
 	{ .pci_subvendor = 0x1043, .pci_subdevice = 0x1113, .config = ALC880_ASUS_DIG },
 	{ .pci_subvendor = 0x1043, .pci_subdevice = 0x1173, .config = ALC880_ASUS_DIG },
 	{ .pci_subvendor = 0x1043, .pci_subdevice = 0x1993, .config = ALC880_ASUS },
+	{ .pci_subvendor = 0x1043, .pci_subdevice = 0x10c2, .config = ALC880_ASUS_DIG }, /* Asus W6A */
 	{ .pci_subvendor = 0x1043, .pci_subdevice = 0x10c3, .config = ALC880_ASUS_DIG },
 	{ .pci_subvendor = 0x1043, .pci_subdevice = 0x1133, .config = ALC880_ASUS },
 	{ .pci_subvendor = 0x1043, .pci_subdevice = 0x1123, .config = ALC880_ASUS_DIG },