Merge pull request avocado-framework-tests#2921 from Pavithra1602/ndctl_fix

Fixes testcases failure due to previously created namespace.

Author: PraveenPenguin

memory/ndctl.py.data/ndctl.yaml

@@ -3,7 +3,7 @@ size: "null"
 map:
 git_branch: 'pending'
 ndctl_project_version: '73'
-preserve_change: True
+preserve_change: False
 mnt_point: '/mnt/pmem'
 fio_job:
 version: !mux