nat: Use the right access list for the stats (found by clang)
diff --git a/openbsc/src/nat/bsc_nat_utils.c b/openbsc/src/nat/bsc_nat_utils.c
index faba7a5..44443d2 100644
--- a/openbsc/src/nat/bsc_nat_utils.c
+++ b/openbsc/src/nat/bsc_nat_utils.c
@@ -298,7 +298,7 @@
 		if (lst_check_deny(nat_lst, mi_string) == 0) {
 			LOGP(DNAT, LOGL_ERROR,
 			     "Filtering %s by nat imsi_deny on bsc nr: %d.\n", mi_string, bsc->cfg->nr);
-			rate_ctr_inc(&bsc_lst->stats->ctr[ACC_LIST_NAT_FILTER]);
+			rate_ctr_inc(&nat_lst->stats->ctr[ACC_LIST_NAT_FILTER]);
 			return -3;
 		}
 	}