This update for yast2-configuration-management, yast2-installation, and skelcd-control-leanos fixes the following issues:

yast2-installation:

- Run configuration_management_finish client after *.repo files are available in the installed system. (bsc#1177522)

yast2-configuration-management:

- Clean-up the libzypp's raw cache before running the finish client. (bsc#1177522)

skelcd-control-leanos and yast2-installation only:

- Fixed an issue where the hostname and proxy configuration was not written to inst-sys when configured
through linuxrc for auto installations (bsc#1177768)

This update was imported from the SUSE:SLE-15-SP2:Update update project.