genirq: Add IRQ_MOVE_PENDING to irq_data.state

chip implementations need to know about it. Keep status in sync until
all users are fixed. 

Accessor function: irqd_is_setaffinity_pending(irqdata)

Coders who access them directly will be tracked down and slapped with
stinking trouts.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/kernel/irq/settings.h b/kernel/irq/settings.h
index ef09824..bb104a2 100644
--- a/kernel/irq/settings.h
+++ b/kernel/irq/settings.h
@@ -20,3 +20,5 @@
 #define IRQ_MASKED		GOT_YOU_MORON
 #undef IRQ_WAKEUP
 #define IRQ_WAKEUP		GOT_YOU_MORON
+#undef IRQ_MOVE_PENDING
+#define IRQ_MOVE_PENDING	GOT_YOU_MORON