exec: 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: 1453832250-766-4-git-send-email-peter.maydell@linaro.org
diff --git a/exec.c b/exec.c
index 7115403..9e076bc 100644
--- a/exec.c
+++ b/exec.c
@@ -16,9 +16,8 @@
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  */
-#include "config.h"
+#include "qemu/osdep.h"
 #ifndef _WIN32
-#include <sys/types.h>
 #include <sys/mman.h>
 #endif
 
@@ -30,7 +29,6 @@
 #include "hw/boards.h"
 #endif
 #include "hw/qdev.h"
-#include "qemu/osdep.h"
 #include "sysemu/kvm.h"
 #include "sysemu/sysemu.h"
 #include "hw/xen/xen.h"