doc: switch to modern syntax for VNC TLS setup

The use of 'tls', 'x509' and 'x509verify' properties is the deprecated
backcompat syntax, replaced by use of TLS creds objects.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20180725092751.21767-2-berrange@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
1 file changed