What would you like to be added:
It would be extremely helpful for operators if nodes were labelled with the autoscaling group they belong to (if there is an autoscaling group associated with a given node). I think node.kubernetes.io/auto-scaling-group-name would be appropriate for this.

Why is this needed:
Alleviate the need to cross-reference autoscaling group instances in AWS with node names in kubectl.

I would be happy to submit a PR if this would be considered for acceptance. Let me know!

/kind feature