ALSA: hda: enable MSI for Gateway M-6866

BugLink: https://bugs.launchpad.net/bugs/538918

The OR has verified that explicitly enabling MSI is necessary for audio
to be audible by default.

This patch is only applicable to 2.6.32.y; in 2.6.33, MSI is enabled by
default.
Reported-by: Sam Townsend <stownsend42@sbcglobal.net>
Tested-by: Sam Townsend <stownsend42@sbcglobal.net>
Acked-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Daniel T Chen <crimsun@ubuntu.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

sound/pci/hda/hda_intel.c

@@ -2317,6 +2317,7 @@ static void __devinit check_probe_mask(struct azx *chip, int dev)
 static struct snd_pci_quirk msi_white_list[] __devinitdata = {
 	SND_PCI_QUIRK(0x103c, 0x30f7, "HP Pavilion dv4t-1300", 1),
 	SND_PCI_QUIRK(0x103c, 0x3607, "HP Compa CQ40", 1),
+	SND_PCI_QUIRK(0x107b, 0x0380, "Gateway M-6866", 1),
 	{}
 };