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/manage.c b/kernel/irq/manage.c
index 50809c7..ea6add6 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -492,7 +492,7 @@
 			if (ret)
 				desc->wake_depth = 0;
 			else
-				desc->istate |= IRQS_WAKEUP;
+				irqd_set(&desc->irq_data, IRQD_WAKEUP_STATE);
 		}
 	} else {
 		if (desc->wake_depth == 0) {
@@ -502,7 +502,7 @@
 			if (ret)
 				desc->wake_depth = 1;
 			else
-				desc->istate &= ~IRQS_WAKEUP;
+				irqd_clear(&desc->irq_data, IRQD_WAKEUP_STATE);
 		}
 	}