kmsrtcpdemus: use trace level to log if a packet is RTCP
kmsrtcpdemus: use trace level to log if a packet is RTCP

Change-Id: I8cb99e2cd698e6677aed417f631e8498807350d2

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