update autoyast for SLES 12 and OpenSuSE 13

- OpenSUSE:
  * install more software to get a working system

- SLES:
  * no additional reposistories are needed for Puppet on SLES 12
  * implement logic to tap the correct repositories for versions
    without Service Pack

- OpenSuSE and SLES
  * start sshd explicitly