[ALSA] cmipci - Fix a typo in 'PC Speaker Playback Switch' control

Fixed a typo in  'PC Speaker Playback Switch' control name.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/cmipci.c b/sound/pci/cmipci.c
index 79bc60a..0938c15 100644
--- a/sound/pci/cmipci.c
+++ b/sound/pci/cmipci.c
@@ -2121,7 +2121,7 @@
 	CMIPCI_MIXER_VOL_MONO("Mic Capture Volume", CM_REG_MIXER2, CM_VADMIC_SHIFT, 7),
 	CMIPCI_SB_VOL_MONO("Phone Playback Volume", CM_REG_EXTENT_IND, 5, 7),
 	CMIPCI_DOUBLE("Phone Playback Switch", CM_REG_EXTENT_IND, CM_REG_EXTENT_IND, 4, 4, 1, 0, 0),
-	CMIPCI_DOUBLE("PC Speaker Playnack Switch", CM_REG_EXTENT_IND, CM_REG_EXTENT_IND, 3, 3, 1, 0, 0),
+	CMIPCI_DOUBLE("PC Speaker Playback Switch", CM_REG_EXTENT_IND, CM_REG_EXTENT_IND, 3, 3, 1, 0, 0),
 	CMIPCI_DOUBLE("Mic Boost Capture Switch", CM_REG_EXTENT_IND, CM_REG_EXTENT_IND, 0, 0, 1, 0, 0),
 };