tmx: use TM api function to get tm table

- fix missing symbol for mode=debug, reported by Santiago Gimeno
(cherry picked from commit fb39052ff574c133c74f1f0a1c8d5f43b5bc93be)

modules_k/tmx/t_mi.c

@@ -706,7 +706,7 @@ struct mi_root* mi_tm_hash(struct mi_root* cmd_tree, void* param)
 	if (rpl_tree==0)
 		return 0;
 	rpl = &rpl_tree->node;
-	tm_t = get_tm_table();
+	tm_t = _tmx_tmb.get_table();
 
 	for (i=0; i<TABLE_ENTRIES; i++) {
 		if(tm_t->entries[i].cur_entries==0