Making rpmcopy_secondstage steps unique also for SLES-for-VMware

- bnc#813072
Backported changes done for openSUSE in Build Service

- These changes are already in openSUSE:Factory
- Made by openSUSE release manager
Making rpmcopy_secondstage steps unique also for SLES-for-VMware

- bnc#813072
Backported changes done for openSUSE in Build Service

- These changes are already in openSUSE:Factory
- Made by openSUSE release manager
Merge branch 'master' of github.com:kobliha/yast-installation
Merge pull request #43 from kobliha/master

Making rpmcopy_secondstage steps unique also for SLES-for-VMware