arm devices: Clean up includes

Clean up includes so that osdep.h is included first and headers
which it implies are not included manually.

This commit was created with scripts/clean-includes.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1453832250-766-36-git-send-email-peter.maydell@linaro.org
diff --git a/hw/cpu/a9mpcore.c b/hw/cpu/a9mpcore.c
index 869818c..23c882f 100644
--- a/hw/cpu/a9mpcore.c
+++ b/hw/cpu/a9mpcore.c
@@ -8,6 +8,7 @@
  * This code is licensed under the GPL.
  */
 
+#include "qemu/osdep.h"
 #include "hw/cpu/a9mpcore.h"
 
 static void a9mp_priv_set_irq(void *opaque, int irq, int level)