arm: 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: 1453832250-766-13-git-send-email-peter.maydell@linaro.org
diff --git a/hw/gpio/pl061.c b/hw/gpio/pl061.c
index 4ba730b..e5a696e 100644
--- a/hw/gpio/pl061.c
+++ b/hw/gpio/pl061.c
@@ -8,6 +8,7 @@
  * This code is licensed under the GPL.
  */
 
+#include "qemu/osdep.h"
 #include "hw/sysbus.h"
 
 //#define DEBUG_PL061 1