kmsicecandidate: Initialize log in a constructor.
kmsicecandidate: Initialize log in a constructor.

As long as kms_ice_candidate_create_nice_from_str can be called
after creating any object, initializing the log in class_init
does not work.

Change-Id: Ie41497448f5911afaa84dd5ef423d4a853998f40

Kurento/kms-elements,Kurento/kms-elements,Kurento/kms-elements