DeviceActorMessageProcessor: added debug log when "max concurrent sessions limit…

… reached per device" (required to debug local integration that also fires that event)

@@ -731,6 +731,7 @@ class DeviceActorMessageProcessor extends AbstractContextAwareMsgProcessor {
     }
 
     private void notifyTransportAboutClosedSessionMaxSessionsLimit(UUID sessionId, SessionInfoMetaData sessionMd) {
+        log.debug("remove eldest session (max concurrent sessions limit reached per device) sessionId [{}] sessionMd [{}]", sessionId, sessionMd);
         notifyTransportAboutClosedSession(sessionId, sessionMd, "max concurrent sessions limit reached per device!");
     }