sound: irq: Remove IRQF_DISABLED

Since commit [e58aa3d2: genirq: Run irq handlers with interrupts disabled],
We run all interrupt handlers with interrupts disabled
and we even check and yell when an interrupt handler
returns with interrupts enabled (see commit [b738a50a:
genirq: Warn when handler enables interrupts]).

So now this flag is a NOOP and can be removed.

Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/arm/aaci.c b/sound/arm/aaci.c
index d0cead3..e518d38 100644
--- a/sound/arm/aaci.c
+++ b/sound/arm/aaci.c
@@ -443,7 +443,7 @@
 	mutex_lock(&aaci->irq_lock);
 	if (!aaci->users++) {
 		ret = request_irq(aaci->dev->irq[0], aaci_irq,
-			   IRQF_SHARED | IRQF_DISABLED, DRIVER_NAME, aaci);
+			   IRQF_SHARED, DRIVER_NAME, aaci);
 		if (ret != 0)
 			aaci->users--;
 	}