Added yamllint config file .yamllint, fixed current linting errors, added install and run yamllint targets.

[yuanning6]

What this PR does / why we need it:

1. This PR adds a .yamllint config file which has rules to config yamllint to enhance linting for yaml files. The lint will be helpful to avoid issues like 7cd7fcc.

2. Fixed current yamllint errors.

3. Added install and run yamllint targerts in Makefile.

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 #1497

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]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[k8s-ci-robot]

Hi @yuanning6. Thanks for your PR.

I'm waiting for a kubernetes-sigs member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[Prajyot-Parab]

/ok-to-test

[yuanning6]

Hi @Prajyot-Parab !

Thank you so much for your time to take a look at my code! Please let me know if any adjustment is needed!

[Prajyot-Parab]

/cc @Karthik-K-N @Amulyam24

[Prajyot-Parab]

/cc @Karthik-K-N @Amulyam24

[Karthik-K-N]

Thank you for the PR, A quick query other than that overall LGTM.

Also I see you have previous PR: #1521, Its advised to update the same PR with latest change but I could see you are hitting some issue and I hope you tried to resolve it before raising this.

If not required close the no more needed PR out of these 2.

[Karthik-K-N]

whats the guarantee that the pip will be available, aren't there any alternative to download this other than pip install, may be via go?

[k8s-ci-robot]

PR needs rebase.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

[mkumatag]

Don't see any activities in this PR, @Amulyam24 will pick this PR and review comments and create a new one