Add similar validations from `Create` for `Upgrade` cluster operation

## Description
We have a set of validations that run for [`create` cluster](https://github.com/aws/eks-anywhere/blob/main/pkg/providers/tinkerbell/create.go#L140L154) with provider tinkerbell, we want to have the same validations for `upgrade` cluster.

Start with the validation block in pkg/providers/tinkerbell/create.go referenced by the issue, then locate the corresponding Upgrade cluster operation in the Tinkerbell provider. Apply the same validation coverage there and verify that upgrade behavior matches create; the issue does not name a test file.

Written by the indexing model from the issue text.