Separated the public interfaces of the threading primitives.

src/libstrongswan/plugins/sqlite/sqlite_database.c

@@ -19,7 +19,7 @@
 #include <unistd.h>
 #include <library.h>
 #include <debug.h>
-#include <threading.h>
+#include <threading/mutex.h>
 
 typedef struct private_sqlite_database_t private_sqlite_database_t;