Adding synchronization primitives destroyers

Environment should provide calls for destroying primitives (i.e. env_mutex_destroy()) and OCF should call these functions in its cleanup paths.

Signed-off-by: Firas Medini <mdnfiras@yahoo.com>

src/ocf_queue.c

@@ -60,6 +60,7 @@ void ocf_queue_put(ocf_queue_t queue)
 		list_del(&queue->list);
 		queue->ops->stop(queue);
 		ocf_mngt_cache_put(queue->cache);
+		env_spinlock_destroy(&queue->io_list_lock);
 		env_free(queue);
 	}
 }