This validates that we correctly handle multifd migration success
and failure scenarios when using TLS with pre shared keys.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20220426160048.812266-8-berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>