dma: pl330: off by one in pl330_probe()

There are only AMBA_NR_IRQS (2) elements in adev->irq[].  This code
maybe works if the there is a zero directly after the array.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index 75328f9..ebd23b0 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -2922,7 +2922,7 @@
 
 	amba_set_drvdata(adev, pdmac);
 
-	for (i = 0; i <= AMBA_NR_IRQS; i++) {
+	for (i = 0; i < AMBA_NR_IRQS; i++) {
 		irq = adev->irq[i];
 		if (irq) {
 			ret = devm_request_irq(&adev->dev, irq,