MNCC: fix copy+paste mistake in log message and change it to DEBUG
diff --git a/openbsc/src/gsm_04_08.c b/openbsc/src/gsm_04_08.c
index 138cdfc..dac574d 100644
--- a/openbsc/src/gsm_04_08.c
+++ b/openbsc/src/gsm_04_08.c
@@ -2876,7 +2876,7 @@
 		switch (bts->type) {
 		case GSM_BTS_TYPE_NANOBTS:
 			if (!trans->conn->lchan->abis_ip.rtp_socket) {
-				LOGP(DMNCC, LOGL_ERROR, "TCH frame for lchan != TCH_F\n");
+				DEBUGP(DMNCC, "TCH frame to lchan without RTP connection\n");
 				return 0;
 			}
 			return rtp_send_frame(trans->conn->lchan->abis_ip.rtp_socket, arg);