Find ec2 instance id using IP

I cannot find a way to do this using bashmyaws.

Here's a way to do it with the cli.

```bash
✗ aws ec2 describe-instances \
  --filter Name=ip-address,Values=1.2.3.4 ]
  --query 'Reservations[].Instances[].InstanceId' \
  --output text
i-00a73299asdjh239
```

Ref https://serverfault.com/a/710936

Can this be added perhaps as `instance-from-private-ip` ?