kmswebrtcconnection: improve logging
kmswebrtcconnection: improve logging

Change-Id: I28b9c621ce674fccb8aca43e5d9458e57fbcd3bf

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