When setting up VncTLS according to the official Libvirt documentation,
only one certificate for libvirt/libvirt-vnc is used. The document
indicates to use the following directories :

 /etc/pki/CA
 /etc/pki/libvirt
 /etc/pki/libvirt/private

in order to manage the certificates used by libvirt-vnc.

Bug-Ubuntu: https://bugs.launchpad.net/bugs/901272Signed-off-by: NChristian Ehrhardt <christian.ehrhardt@canonical.com>
Signed-off-by: NStefan Bader <stefan.bader@canonical.com>