test(spc): Fix the test related to the PR #1597

[chandankumar4]

What this PR does / why we need it:

• This commit will fix the test cases related to the PR chore(spc):introduce new field to control overprovisioning #1597

Which issue this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close that issue when PR gets merged): fixes openebs/openebs#2855

Special notes for your reviewer:

Checklist:

• Fixes
• Labelled this PR & related issue with documentation tag
• PR messages has document related information
• Labelled this PR & related issue with breaking-changes tag
• PR messages has breaking changes related information
• Labelled this PR & related issue with requires-upgrade tag
• PR messages has upgrade related information
• Commit has unit tests
• Commit has integration tests

Signed-off-by: chandan kumar [email protected]

[vishnuitta]

changes are good. We need to add more for testing new feature. For ex., without these changes also, travis passed, but, ideally it should have failed if testcases are taken care of this overprovisioning feature properly.