[Enabler][1578]backup_restore_portability (#1635)

* Set new test

* Add restore lower case

* Add correct distinct case

* Add good import

* Fix alt

* Change to get random qualifier

* Add fragment

* Change bad import

* Get unique uss files names

Author: AndreMarcel99

changelogs/fragments/1635-backup_restore_portability.yml

@@ -0,0 +1,3 @@
+trivial:
+  - test_zos_backup_restore - Remove the use of hard coded hlq and files names.
+    (https://github.com/ansible-collections/ibm_zos_core/pull/1635).