ALSA: rme32.c irq enabling after spin_lock_irq

According to the other code in this driver and similar
code in rme96 it seems, that spin_lock_irq in
snd_rme32_capture_close function should be paired
with spin_unlock_irq.

Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: NDenis Efremov <yefremov.denis@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

sound/pci/rme32.c

@@ -1017,7 +1017,7 @@ static int snd_rme32_capture_close(struct snd_pcm_substream *substream)
 	spin_lock_irq(&rme32->lock);
 	rme32->capture_substream = NULL;
 	rme32->capture_periodsize = 0;
-	spin_unlock(&rme32->lock);
+	spin_unlock_irq(&rme32->lock);
 	return 0;
 }