StatefulSet forbiddened to create CRD resource

[c3y1huang]

What type of PR is this?

/kind bug
/kind cleanup

What this PR does / why we need it:
Snapshotter container CrashLoopBackOff due to missing RBAC rule.

$ kubectl -n kube-system get pod | grep snapshot
csi-hostpath-snapshotter-0                            0/1     CrashLoopBackOff   1          15s

$ kubectl -n kube-system logs csi-hostpath-snapshotter-0
I0217 08:56:00.847903       1 main.go:89] Version: v1.2.0-0-gb3f591d8
F0217 08:56:00.868923       1 create_crd.go:50] failed to create VolumeSnapshotResource: &v1beta1.CustomResourceDefinition{TypeMeta:v1.TypeMeta{Kind:"", APIVersion:""}, ObjectMeta:v1.ObjectMeta{Name:"", GenerateName:"", Namespace:"", SelfLink:"", UID:"", ResourceVersion:"", Generation:0, CreationTimestamp:v1.Time{Time:time.Time{wall:0x0, ext:0, loc:(*time.Location)(nil)}}, DeletionTimestamp:(*v1.Time)(nil), DeletionGracePeriodSeconds:(*int64)(nil), Labels:map[string]string(nil), Annotations:map[string]string(nil), OwnerReferences:[]v1.OwnerReference(nil), Initializers:(*v1.Initializers)(nil), Finalizers:[]string(nil), ClusterName:"", ManagedFields:[]v1.ManagedFieldsEntry(nil)}, Spec:v1beta1.CustomResourceDefinitionSpec{Group:"", Version:"", Names:v1beta1.CustomResourceDefinitionNames{Plural:"", Singular:"", ShortNames:[]string(nil), Kind:"", ListKind:"", Categories:[]string(nil)}, Scope:"", Validation:(*v1beta1.CustomResourceValidation)(nil), Subresources:(*v1beta1.CustomResourceSubresources)(nil), Versions:[]v1beta1.CustomResourceDefinitionVersion(nil), AdditionalPrinterColumns:[]v1beta1.CustomResourceColumnDefinition(nil), Conversion:(*v1beta1.CustomResourceConversion)(nil)}, Status:v1beta1.CustomResourceDefinitionStatus{Conditions:[]v1beta1.CustomResourceDefinitionCondition(nil), AcceptedNames:v1beta1.CustomResourceDefinitionNames{Plural:"", Singular:"", ShortNames:[]string(nil), Kind:"", ListKind:"", Categories:[]string(nil)}, StoredVersions:[]string(nil)}}, err: &errors.StatusError{ErrStatus:v1.Status{TypeMeta:v1.TypeMeta{Kind:"", APIVersion:""}, ListMeta:v1.ListMeta{SelfLink:"", ResourceVersion:"", Continue:""}, Status:"Failure", Message:"customresourcedefinitions.apiextensions.k8s.io is forbidden: User \"system:serviceaccount:kube-system:csi-snapshotter\" cannot create resource \"customresourcedefinitions\" in API group \"apiextensions.k8s.io\" at the cluster scope", Reason:"Forbidden", Details:(*v1.StatusDetails)(0xc000104240), Code:403}}

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

NONE

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[xing-yang]

Are you testing external-snapshotter version 1.2.0? If so, please use earlier version of rbac file: https://github.com/kubernetes-csi/external-snapshotter/blob/release-1.2/deploy/kubernetes/rbac.yaml#L50

The yaml files in the master support external-snapshotter 2.0 and higher where CRDs are no longer deployed by the csi-snapshotter.

[c3y1huang]

Awesome, Thanks!