nvidia-migmanager reboot-if-required is called (and fails) in nvidia variants

[piyush-jena]

Platform I'm building on:
nvidia variants in AWS

What I expected to happen:
no errors

What actually happened:
journal logs

Aug 19 19:36:26 ip-172-31-2-139.us-west-2.compute.internal nvidia-migmanager[2493]: 19:36:26 [INFO] nvidia-migmanager started
Aug 19 19:36:26 ip-172-31-2-139.us-west-2.compute.internal nvidia-migmanager[2493]: Failed to read settings from config at /etc/nvidia-migmanager/nvidia-migmanager.toml: No such file or directory (os error 2)

How to reproduce the problem:
Boot an nvidia variant AMI

This is due to the drop-in being added for nvidia variants. We can put it in only in case of nvidia k8s variant.