Add CSI_NODE_NAME to node Daemonset

[RyanStan]

We added CSI_NODE_NAME as an environment variable to the Helm Chart's node Daemonset, but we forget to add it to our kustomize deploy files as well. This is required for users who have IMDS disabled on their cluster, and who install the driver using kustomize.

This fixes #1111.

For more background,

This recent commit removed hostNetwork = true from the node daemonset. This means that the Node Daemonset Pods cannot use IMDS for getting the region.

A while ago, this commit was merged which allows us to pull EC2 info from Kubernetes instead of IMDS if IMDS is enabled. However, it requires the CSI_NODE_NAME env variable to be set. The author of this commit only added it to the Controller Deployment, but our Node Daemonset needs it as well. Thus, that's why the commit above, where hostNetwork = true was removed, also introduced this CSI_NODE_NAME to our Helm Chart. However, it wasn't added to the Node daemonset spec that our Kustomize files use.

Is this a bug fix or adding new feature?
Bug fix

What testing is done?
I applied a static provisioning example while enforcing IMDSv2 was used (which disabled IMDS).

[k8s-ci-robot]

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[mskanth972]

/ok-to-test

[mskanth972]

/lgtm

[mskanth972]

/approve

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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: mskanth972, RyanStan

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[k8s-ci-robot]

@mskanth972: Failed to re-open PR: state cannot be changed. The pull request cannot be reopened.

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/reopen

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