all: 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: 1454089805-5470-16-git-send-email-peter.maydell@linaro.org
diff --git a/device-hotplug.c b/device-hotplug.c
index 68b9496..9a7cd66 100644
--- a/device-hotplug.c
+++ b/device-hotplug.c
@@ -22,6 +22,7 @@
  * THE SOFTWARE.
  */
 
+#include "qemu/osdep.h"
 #include "hw/hw.h"
 #include "hw/boards.h"
 #include "sysemu/block-backend.h"