MDEV-5120 Test suite test maria-no-logging fails

stat structure (from <sys/stat.h>) is conditionally defined
to have different layout and size depending on the defined macros.
The correct macro is defined in my_config.h, which means it MUST be
included first (or, at least before <features.h> - so, practically,
before including any system headers).

tests/async_queries.c

@@ -21,16 +21,16 @@
   API, and compare to running same queries with the normal blocking API.
 */
 
-#include <sys/time.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-
 #include <my_global.h>
 #include <my_sys.h>
 #include <mysql.h>
 #include <my_getopt.h>
 
+#include <sys/time.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
 #include <event.h>