util: 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: 1454089805-5470-6-git-send-email-peter.maydell@linaro.org
diff --git a/util/qemu-error.c b/util/qemu-error.c
index ecf5708..1ef3566 100644
--- a/util/qemu-error.c
+++ b/util/qemu-error.c
@@ -10,7 +10,7 @@
  * See the COPYING file in the top-level directory.
  */
 
-#include <stdio.h>
+#include "qemu/osdep.h"
 #include "monitor/monitor.h"
 #include "qemu/error-report.h"