genirq: Move wakeup state to irq_data

Some irq_chips need to know the state of wakeup mode for
setting the trigger type etc. Reflect it in irq_data state.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/kernel/irq/pm.c b/kernel/irq/pm.c
index f39383d..1329f0e 100644
--- a/kernel/irq/pm.c
+++ b/kernel/irq/pm.c
@@ -69,7 +69,7 @@
 	int irq;
 
 	for_each_irq_desc(irq, desc)
-		if ((desc->istate & IRQS_WAKEUP) &&
+		if (irqd_is_wakeup_set(&desc->irq_data) &&
 		    (desc->istate & IRQS_PENDING))
 			return -EBUSY;