dc32b52f08
Adds support for configuration of DNF repo mirrors for CentOS and EPEL repositories, as well as custom repositories. Adds support for DNF automatic, which is a replacement for yum-cron. Configuration is backwards compatible, falling back to the equivalent yum variables when DNF variables have not been overridden. Change-Id: I8bef5e9c8e1c77c25d6077ff690da8f2cde6a643 Story: 2006574 Task: 38922