Update TLS CertificateDescription
Adds a new private-public certificate and, optionally, a private key that can be applied to one of the user-facing components (appliance management or edge). The certificate and the key should be stored in PEM format. If no private key is provided, the certificate is used as a client certificate in the trust store. A certificate chain will not be expanded into separate certificate instances for reference, but would be pushed to the enforcement point as a single certificate. This patch method does not modify an existing certificate.