arm_pic: Fix typo

interrput -> interrupt

Cc: Paul Brook <paul@codesourcery.com>
Signed-off-by: NAndreas Färber <andreas.faerber@web.de>
Signed-off-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com>

hw/arm_pic.c

@@ -39,7 +39,7 @@ static void arm_pic_cpu_handler(void *opaque, int irq, int level)
             cpu_reset_interrupt(env, CPU_INTERRUPT_FIQ);
         break;
     default:
-        hw_error("arm_pic_cpu_handler: Bad interrput line %d\n", irq);
+        hw_error("arm_pic_cpu_handler: Bad interrupt line %d\n", irq);
     }
 }