FS-11784 [mod_sofia] quiet the codec negotiation error log. It's something that…

FS-11784 [mod_sofia] quiet the codec negotiation error log.  It's something that is not necessarily a FS issue.

src/mod/endpoints/mod_sofia/mod_sofia.c

@@ -2575,7 +2575,7 @@ static switch_status_t sofia_receive_message(switch_core_session_t *session, swi
 
 							switch_core_media_prepare_codecs(tech_pvt->session, SWITCH_TRUE);
 							if (zstr(r_sdp) || sofia_media_tech_media(tech_pvt, r_sdp) != SWITCH_STATUS_SUCCESS) {
-								switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR,
+								switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_WARNING,
 												  "CODEC NEGOTIATION ERROR.  SDP:\n%s\n", r_sdp ? r_sdp : "NO SDP!");
 								switch_channel_set_variable(channel, SWITCH_ENDPOINT_DISPOSITION_VARIABLE, "CODEC NEGOTIATION ERROR");
 								//nua_respond(tech_pvt->nh, SIP_488_NOT_ACCEPTABLE, TAG_END());