This update for baseiso-containment fixes the following issues:

Changes in baseiso-containment:

- 0.2.7
  * tftpboot: package s390x specific files
  * maintain the directory structure rather than putting everything inside
    the loader/ directory. Files are also symlinked into loader/ to
    keep old configurations working
  * add skelcd package that can be extracted in ftp-trees (bsc#1248800)