ACI-CNI 5.2.3.2 upgrade

[siva-muni]

• Add ACI template
• Add ACI CNI template and images.

[snasovich]

@siva-muni, thank you for submitting this PR.

I've left a few specific comments to address.
Additionally, here are couple general comments:

• The build is failing, please look into why and address: https://github.com/rancher/kontainer-driver-metadata/pull/889/commits
• To merge this PR, we want it to have 2 commits - actual changes and go generate (so updates to data.json) separately.

[siva-muni]

snasovich, Thanks for the review, we will address your comments.

[siva-muni]

We addressed the comments in 91eb1fe, 07b240a, but still we need to test this code once it works fine, We will update, we are working on this.

[siva-muni]

With these changes, we are seeing the issues, We will fix and update

[siva-muni]

Made few more changes, testing in progress.

[snasovich]

I see most of my previous comments are addressed, thank you.

Added some more comments to address.

Also, note that per #922 (comment) the best option would be to rebase after PR #921 is merged (should be very soon) to update versions it added with new ACI images /templates instead of introducing new ones. It should be merged very soon, likely today.

[snasovich]

@siva-muni , #921 is now merged so please go ahead with rebasing this PR and updating versions added by #921 instead of introducing new ones.

[siva-muni]

snasovich, thanks for the review, I will address the comments

[siva-muni]

Addressed the comments, We have updated the images in the versions added by #921

• 1.22.11-rancher1-1
• 1.21.14-rancher1-1
• 1.20.15-rancher2-1

[siva-muni]

With these changes, testing is in-progress

[snasovich]

@siva-muni , changes LGTM, thank you for addressing my comments.

Please report the results of your testing and once you confirm it's successful and we have one more approval, this can be merged.

cc: @kinarashah

[siva-muni]

snasovich, We are finished our testing, it was successful. We are not seeing any issues.

[kinarashah]

@siva-muni Is there any reason we don't want the images to be updated for 1.23.x and 1.24.x? If users upgrade from 1.22.x to 1.23.x aci version would downgrade, is that expected? Apologies for missing necessary context if it's obvious.

[siva-muni]

kinarashah, we added the new images now for 1.23 and 1.24 versions as well. This is an oversight from our side as we are doing this for the first time.

[snasovich]

@siva-muni , thank you for following up on this. Are we waiting for additional testing or good to merge once @kinarashah approves?

[siva-muni]

snasovich, We are done with testing. We are good to merge.

[snasovich]

@siva-muni , thank you for updating the PR and reporting that the testing is successful. LGTM.
@kinarashah , could you please take a peek at it as well and if it looks good to you, please merge it.