basertpendpoint: Fix invalid casting
basertpendpoint: Fix invalid casting

Change-Id: I131fc457b40952a31b61c49ef8eb0b2e99c16711

Kurento/kms-core,Kurento/kms-core,ESTOS/kms-core,ESTOS/kms-core,ESTOS/kms-core,ESTOS/kms-core,Kurento/kms-core,Kurento/kms-core