[ALSA] hda-codec - Add LFE support on Dell M90

Added LFE support on Dell M90 laptop.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index f7ef9c5..54fdf34 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -461,6 +461,8 @@
 		      "Dell Inspiron E1705/9400", STAC_REF),
 	SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x01ce,
 		      "Dell XPS M1710", STAC_REF),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x01cf,
+		      "Dell Precision M90", STAC_REF),
 	{} /* terminator */
 };