Release v1.2.0

[wongma7]

Is this a bug fix or adding new feature?

What is this PR about? / Why do we need it? this is a cherry-pick of #368 on master to update docs and such now that the images from #368 have been pushed

also #371 to make the helm chart and kustomize match the changes in release-1.2

Also I updated the kustomize install in README, missed that the first round.

What testing is done?

[wongma7]

/hold

unhold when #371 merges.

then v1.2.0 will release 100%. we are 99% of the way there since there is a GitHub release but these readme updates aren't in amster branch yet..

[jqmichael]

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: jqmichael, wongma7

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[wongma7]

/hold cancel

[wongma7]

/test pull-aws-efs-csi-driver-e2e

failure is worrisome

[wongma7]

[Fail] [efs-csi] EFS CSI [Driver: efs.csi.aws.com] [It] should continue reading/writing without hanging after the driver pod is restarted
/home/prow/go/src/github.com/kubernetes-sigs/aws-efs-csi-driver/test/e2e/e2e.go:303
[Fail] [efs-csi] EFS CSI [Driver: efs.csi.aws.com] [Testpattern: Pre-provisioned PV (default fs)] volumes [It] should store data
/home/prow/go/pkg/mod/k8s.io/kubernetes@v1.18.10/test/e2e/storage/utils/utils.go:83

/retest

need kubernetes-sigs/aws-ebs-csi-driver#802 for debugging

[wongma7]

Also, the driver restart test coudl mess with log-collecting anyway depending on order it is run since logs from before the test would disappear.

[kbasv]

/test pull-aws-efs-csi-driver-e2e

[kbasv]

/test pull-aws-efs-csi-driver-e2e

[kbasv]

/test pull-aws-efs-csi-driver-e2e