[EKS] [request]: Nodegroup should support tagging ASGs

### Community Note

* Please vote on this issue by adding a 👍 [reaction](https://blog.github.com/2016-03-10-add-reactions-to-pull-requests-issues-and-comments/) to the original issue to help the community and maintainers prioritize this request
* Please do not leave "+1" or "me too" comments, they generate extra noise for issue followers and do not help prioritize the request
* If you are interested in working on this issue or have submitted a pull request, please leave a comment

**Tell us about your request**
It would be great if we could pass tags to the underlying ASGs (and tell the ASGs to propagate tags) that are created from the managed node groups for EKS so that the underlying instances/volumes are tagged appropriately.

**Which service(s) is this request for?**
EKS

**Tell us about the problem you're trying to solve. What are you trying to do, and why is it hard?**
Currently, managed node groups for EKS do not support propagating tags to ASGs (and therefore the instances) created by the node group. This leads to EC2 instances that are not tagged according to our requirements for tracking cost, and resource ownership.

The issue describes EKS managed node groups, their underlying Auto Scaling Groups, and tag propagation, but it names no repository files, tests, or implementation entry points. Start by determining whether this roadmap repository contains an actionable implementation path; done would mean supporting ASG and instance tag propagation for managed node groups.

Written by the indexing model from the issue text.