The parameter PublicSSLCertificateAutogenerated was added in
resource_registry section in environment file in change
I299e6052e6a872c3907184b635d218a806d906e0, moving it to
parameter_defaults section.
Change-Id: Ib454a080c910e2cd2dae22a11d04794824dcb9ad
Closes-Bug: 1731480