ALSA: Intel8x0: Add hp_only quirk for SSID 0x1028016a (Dell Inspiron 8600)

Subject says it all. Briefly, use hp_only for another Dell Inspiron 8600.

Reference: Ubuntu #41015 (https://launchpad.net/bugs/41015)
Signed-off-by: Daniel T Chen <seven.steps@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/intel8x0.c

@@ -1852,6 +1852,12 @@ static struct ac97_quirk ac97_quirks[] __devinitdata = {
 		.name = "Dell Unknown",	/* STAC9750/51 */
 		.type = AC97_TUNE_HP_ONLY
 	},
+	{
+		.subvendor = 0x1028,
+		.subdevice = 0x016a,
+		.name = "Dell Inspiron 8600",	/* STAC9750/51 */
+		.type = AC97_TUNE_HP_ONLY
+	},
 	{
 		.subvendor = 0x1028,
 		.subdevice = 0x0186,