Added UT for reconcilePowerVSResources function

[Shilpa-Gokul]

What this PR does / why we need it:

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Partially Fixes #1818

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:

[k8s-ci-robot]

Hi @Shilpa-Gokul. Thanks for your PR.

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[Amulyam24]

/ok-to-test

[Amulyam24]

Minor suggestions, overall LGTM!

[Amulyam24]

/lgtm

[Karthik-K-N]

/hold
#2031 should merge first as its huge, so This PR needs a rebase after that.

[Shilpa-Gokul]

@Karthik-K-N @Amulyam24 Have rebased the changes, PTAL

[Amulyam24]

/unhold

[Karthik-K-N]

/lgtm

[Prajyot-Parab]

/lgtm

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Amulyam24, Prajyot-Parab, Shilpa-Gokul

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• OWNERS [Prajyot-Parab]

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