tests: 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>
Reviewed-by: Eric Blake <eblake@redhat.com>
Tested-by: Eric Blake <eblake@redhat.com>
diff --git a/tests/ipmi-kcs-test.c b/tests/ipmi-kcs-test.c
index 564c470..42c4b97 100644
--- a/tests/ipmi-kcs-test.c
+++ b/tests/ipmi-kcs-test.c
@@ -22,9 +22,7 @@
  * THE SOFTWARE.
  */
 
-#include <stdint.h>
-#include <string.h>
-#include <stdio.h>
+#include "qemu/osdep.h"
 
 #include <glib.h>