Pods in "openshift-cluster-csi-drivers" stay "Pending" during upgrade to OpenShift Container Platform 4.6

Issue

• During the Upgrade from OpenShift Container Platform 4.5 to OpenShift Container Platform 4.6, Pods in the openshift-cluster-csi-drivers stay in the Pending status.

• Scheduling of aws-ebs-csi-driver-node-* Pods fails with the following error messsages:

  - 0/10 nodes are available: 1 node(s) didn't match node selector, 9 node(s) didn't have free ports for the requested pod ports.
  - pod didn't trigger scale-up (it wouldn't fit if a new node is added): 2 node(s) didn't match node selector, 1 max node group size reached
  

• The Cluster Storage Operator stays in the "Progressing" state and is stuck with the following error message:

  AWSEBSCSIDriverOperatorCRProgressing: AWSEBSDriverNodeServiceControllerProgressing: Waiting for DaemonSet to deploy node pods