ALSA: ens1371: Fix "Line In->Rear Out Switch" control

The "Line In->Rear Out Switch" control on ens1371 driver returns a
bogus value, always true, as its check is totally broken.  Fix it to
check the proper GPIO bit mask.
Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/ens1370.c

@@ -1548,7 +1548,7 @@ static int snd_es1373_line_get(struct snd_kcontrol *kcontrol,
 	int val = 0;
 	
 	spin_lock_irq(&ensoniq->reg_lock);
-	if ((ensoniq->ctrl & ES_1371_GPIO_OUTM) >= 4)
+	if (ensoniq->ctrl & ES_1371_GPIO_OUT(4))
 	    	val = 1;
 	ucontrol->value.integer.value[0] = val;
 	spin_unlock_irq(&ensoniq->reg_lock);