webrtcendpoint: improve logging
webrtcendpoint: improve logging

Change-Id: Ied17f84a845335b52089d485eec376dfa738ed6b

TribeMedia/kms-elements,TribeMedia/kms-elements,shelsonjava/kms-elements,shelsonjava/kms-elements,TribeMedia/kms-elements,shelsonjava/kms-elements