Copy the iSCSI initiator name file to the installed system
Copy the iSCSI initiator name file to the installed system

The initiatorname.iscsi file is used (sometimes) during boot so
we need to write the configuration to the installed system.

Resolves: rhbz#1664587

vojtechtrefny/blivet,jkonecny12/blivet,vojtechtrefny/blivet,rvykydal/blivet,jkonecny12/blivet,rvykydal/blivet