irqchip: omap-intc: minor improvement to omap_irq_pending()

We already hold the number of Pending registers
in omap_nr_pending. Let's use that instead.
Acked-by: NJason Cooper <jason@lakedaemon.net>
Signed-off-by: NFelipe Balbi <balbi@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

drivers/irqchip/irq-omap-intc.c

@@ -174,11 +174,10 @@ static void __init omap_irq_soft_reset(void)
 
 int omap_irq_pending(void)
 {
-	int irq;
+	int i;
 
-	for (irq = 0; irq < omap_nr_irqs; irq += 32)
-		if (intc_readl(INTC_PENDING_IRQ0 +
-					((irq >> 5) << 5)))
+	for (i = 0; i < omap_nr_pending; i++)
+		if (intc_readl(INTC_PENDING_IRQ0 + (0x20 * i)))
 			return 1;
 	return 0;
 }