[ALSA] patch_realtek.c: Add new model

Modules: HDA Codec driver

This little patch add the model for the motherboard K8N51 from Gigabyte
to the known models of ALC boards.
Signed-off-by: NArnaud Patard <apatard@mandriva.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

sound/pci/hda/patch_realtek.c

@@ -1668,6 +1668,7 @@ static struct hda_board_config alc880_cfg_tbl[] = {
 	{ .pci_subvendor = 0x1043, .pci_subdevice = 0x8196, .config = ALC880_6ST }, /* ASUS P5GD1-HVM */
 	{ .pci_subvendor = 0x1043, .pci_subdevice = 0x81b4, .config = ALC880_6ST },
 	{ .pci_subvendor = 0x1019, .pci_subdevice = 0xa884, .config = ALC880_6ST }, /* Acer APFV */
+	{ .pci_subvendor = 0x1458, .pci_subdevice = 0xa102, .config = ALC880_6ST }, /* Gigabyte K8N51 */
 
 	{ .modelname = "6stack-digout", .config = ALC880_6ST_DIG },
 	{ .pci_subvendor = 0x2668, .pci_subdevice = 0x8086, .config = ALC880_6ST_DIG },