Fix inconsistency in isilon namespace

[donatwork]

Description

The instructions in the CSM Operator deployment for PowerScale is inconsistent in the use of the namespace name. In some places test-isilon is used but in some of the example code the namespace isilon is used.

GitHub Issues

List the GitHub issues impacted by this PR:

GitHub Issue #
793

Checklist:

• Have you run a grammar and spell checks against your submission?
• Have you tested the changes locally?
• Have you tested whether the hyperlinks are working properly?
• Did you add the examples wherever applicable?
• Have you added high-resolution images?

[rsedlock1958]

Why are we still using Isilon instead of PowerScale?

[donatwork]

Why are we still using Isilon instead of PowerScale?

Good question but not something I can answer. Changing to powerscale is beyond the scope of what I want to fix. Ideally we should use power* or dell-power* everywhere but will require more extensive changes. We can address that in a future improvement once everyone agrees to change to powerscale.