[qem][qe-core] Enhance firewall zones/services configuration in AutoYaST configuration file
We may need to make sure the system installed via autoyast can get the same firewall configuration as we do with interactive installation.
However, currently we are maintaining a single configuration file for each sle15/sle12 platform.
So I will try to do some enhancement to current autoyast template file. But we may need to do enough VRs to make sure the changes don't introduce new issues.
- Current firewall configuration seems fine, but we may consider the service
22due to different requirements on each platform [for s390x and powerVM, we need unblock it due to remote worker access needs ssh port open]
- Use as few lines as we can to define firewall, then we can get default firewall setting [the same configuration as we do via interactive install]
- Don't change the default firewall behavior as interactive installation, that will cause problems and will miss test coverage.