[WIP] Multiple workspaces support enhancement

[Karthik-K-N]

What this PR does / why we need it:
Enhancement to support multiple workspace for Power VS cluster

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes # Related to #2028

Special notes for your reviewer:

/area provider/ibmcloud

1. Please confirm that if this PR changes any image versions, then that's the sole change this PR makes.

Release note:

Power VS support multiple workspaces

[k8s-ci-robot]

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This pull-request has been approved by: Karthik-K-N
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[Karthik-K-N]

TODO: Explore on networking rquirements