[cifmw_setup] Add default value of cifmw_architecture_repo

[amartyasinha]

Since cifmw_setup role is often used in playbooks outside of ci-framework, it causes group_vars to not be included and causing missing variables error.

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[danpawlik]

I'm against that.
It should be using var from group_vars. If that does not use it, we need to fix it not make something that would be reverted later.

[amartyasinha]

I'm against that. It should be using var from group_vars. If that does not use it, we need to fix it not make something that would be reverted later.

This is actually a partial revert, as it is blocking integration pipeline, instead of going for an entire revert.

[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://softwarefactory-project.io/zuul/t/rdoproject.org/buildset/fa08c0265df6467e8d63ee05d66da8be

✔️ openstack-k8s-operators-content-provider SUCCESS in 3h 14m 51s
✔️ podified-multinode-edpm-deployment-crc SUCCESS in 1h 20m 00s
✔️ cifmw-crc-podified-edpm-baremetal SUCCESS in 1h 29m 00s
✔️ cifmw-pod-zuul-files SUCCESS in 5m 07s
❌ adoption-standalone-to-crc-ceph-provider FAILURE in 3h 00m 50s
✔️ noop SUCCESS in 0s
❌ cifmw-pod-ansible-test TIMED_OUT in 31m 01s
✔️ cifmw-pod-pre-commit SUCCESS in 8m 19s
✔️ build-push-container-cifmw-client SUCCESS in 16m 58s
✔️ cifmw-molecule-cifmw_setup SUCCESS in 2m 27s

[amartyasinha]

Closing as another fix worked. Partial revert not required.