recorderendpoint: Do signal on a condition variable with mutex locked
recorderendpoint: Do signal on a condition variable with mutex locked

Change-Id: Ie9ab9d61ec9a2ab35d66abd6c5cde05a0078f9ae

TribeMedia/kms-core,ESTOS/kms-core,Kurento/kms-core,KurentoLegacy/gst-kurento-plugins,ESTOS/kms-core,Kurento/kms-core,Kurento/kms-core,shelsonjava/kms-core,ESTOS/kms-core,shelsonjava/kms-core,shelsonjava/kms-core,Kurento/kms-core,TribeMedia/kms-core,KurentoLegacy/gst-kurento-plugins,KurentoLegacy/gst-kurento-plugins,KurentoLegacy/gst-kurento-plugins,ESTOS/kms-core,TribeMedia/kms-core,shelsonjava/kms-core,TribeMedia/kms-core