Adding enable chassis gateway config

[Jaganathancse]

No description provided.

[karthiksundaravel]

Looks good.

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: fao89, Jaganathancse

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[softwarefactory-project-zuul]

Build failed (check pipeline). Post recheck (without leading slash)
to rerun all jobs. Make sure the failure cause has been resolved before
you rerun jobs.

https://review.rdoproject.org/zuul/buildset/4e8ea9f4f24149c39a2a8a0a92b83e16

✔️ openstack-k8s-operators-content-provider SUCCESS in 3h 19m 50s
✔️ podified-multinode-edpm-deployment-crc SUCCESS in 1h 07m 38s
❌ cifmw-crc-podified-edpm-baremetal TIMED_OUT in 3h 00m 31s

[fao89]

recheck