Postfix port (Cyrus SASL support)

Hi, I've forgotton to add Cyrus SASL support to the Postfix port. According to the Release Notes of 2.3.2 the Postfix-with-Cyrus-SASL build procedure has changed but I didn't notice that change. I am sorry. If you need Cyrus SASL support it's very important to update your postfix build. Regards Viper