GPRS: Fix compiler warning that will also lead to a crash at runtime.
diff --git a/openbsc/src/gprs/gprs_bssgp_util.c b/openbsc/src/gprs/gprs_bssgp_util.c
index 566ac4c..e760252 100644
--- a/openbsc/src/gprs/gprs_bssgp_util.c
+++ b/openbsc/src/gprs/gprs_bssgp_util.c
@@ -101,7 +101,7 @@
 	struct bssgp_normal_hdr *bgph =
 			(struct bssgp_normal_hdr *) msgb_put(msg, sizeof(*bgph));
 
-	DEBUGP(DBSSGP, LOGL_NOTICE, "BSSGP BVCI=%u Tx STATUS, cause=%s\n",
+	LOGP(DBSSGP, LOGL_NOTICE, "BSSGP BVCI=%u Tx STATUS, cause=%s\n",
 		bvci ? *bvci : 0, bssgp_cause_str(cause));
 	msgb_nsei(msg) = msgb_nsei(orig_msg);
 	msgb_bvci(msg) = 0;