Ensure all locks are properly cleaned up

Some locks were not being properly cleaned up during close down.

Reviewed-by: Richard Levitte <levitte@openssl.org>

crypto/include/internal/cryptlib_int.h

@@ -65,6 +65,8 @@ struct thread_local_inits_st {
 };
 
 int ossl_init_thread_start(uint64_t opts);
+void ex_data_cleanup(void);
+
 /*
  * OPENSSL_INIT flags. The primary list of these is in crypto.h. Flags below
  * are those ommitted from crypto.h because they are "reserverd for internal