arch/mn10300/kernel/irq.c: fix build

Addresses https://bugzilla.kernel.org/show_bug.cgi?id=25702

Reported-by: Martin Ettl <ettl.martin@gmx.de>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/mn10300/kernel/irq.c

@@ -459,7 +459,7 @@ void migrate_irqs(void)
 			tmp = CROSS_GxICR(irq, new);
 
 			x &= GxICR_LEVEL | GxICR_ENABLE;
-			if (GxICR(irq) & GxICR_REQUEST) {
+			if (GxICR(irq) & GxICR_REQUEST)
 				x |= GxICR_REQUEST | GxICR_DETECT;
 			CROSS_GxICR(irq, new) = x;
 			tmp = CROSS_GxICR(irq, new);