charon-tkm: Deinitialize tkm before libstrongswan

In particular because of leak-detective.

src/charon-tkm/src/charon-tkm.c

@@ -382,7 +382,7 @@ int main(int argc, char *argv[])
 deinit:
 	destroy_dh_mapping();
 	libcharon_deinit();
-	library_deinit();
 	tkm_deinit();
+	library_deinit();
 	return status;
 }