[EKS] [addon]: Support secrets-store-csi-driver and secrets-store-csi-driver-provider-aws as EKS addons

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**Tell us about your request**
It will be great if we could support [secrets-store-csi-driver](https://github.com/kubernetes-sigs/secrets-store-csi-driver) and [secrets-store-csi-driver-provider-aws](https://github.com/aws/secrets-store-csi-driver-provider-aws) as EKS addons

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

Start by reading the EKS addon request and the linked secrets-store-csi-driver and secrets-store-csi-driver-provider-aws projects. Identify the EKS addon integration entry points and requirements before choosing an implementation path. Done means both requested drivers are supported as EKS addons, with the expected integration verified.

Written by the indexing model from the issue text.