kmsrtpendpoint: Add debug trace for finalize function
kmsrtpendpoint: Add debug trace for finalize function

Change-Id: Ib9918fb1b7875023272b61aaeb5486c7fcc3786c

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