Installing ssl-cert package as apache element requires it

The apache element fails because make-ssl-cert is required
but never installed.  This was never tested and yet has
been merged.  This is a CI/testing failure that should be
noted.

Change-Id: Iec001c20332efd61907f65744c2be1d98bf96a37
Closes-Bug: #1318761
Merge "Installing ssl-cert package as apache element requires it"