Suppress output from asn1c on every cmake run
Suppress output from asn1c on every cmake run

Change-Id: I64233e6c37875a1e554cffa1b34956f181164963

advancedtelematic/aktualizr,advancedtelematic/aktualizr,advancedtelematic/aktualizr,advancedtelematic/aktualizr,advancedtelematic/sota_client_cpp,advancedtelematic/sota_client_cpp