- Fixed netboot overlay setup code
  Make sure setupUnionFS is called if UNIONFS_CONFIG is set
  In addition correctly update the devices set in the variable
  by the setupUnionFS function and make sure unionFST has a
  value in all union modes
- Added 'fs/isofs/*' to the boot image descriptions for SLE12
  and openSUSE 13.2. The kernel people decided to build ISO9660
  support as module now (bnc #867834)