Unable to create PVC for AWS storage in Openshift with message 'UnauthorizedOperation: You are not authorized to perform this operation'

Issue

• When attempting to create a PVC in OCP on AWS, the below errors in the events are shown:

  Warning         ProvisioningFailed      Failed to provision volume with StorageClass "gp2": UnauthorizedOperation: You are not authorized to perform this operation. Encoded authorization failure message: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx status code: 403, request id: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
  

  (combined from similar events): failed to provision volume with StorageClass "gp2": rpc error: code = Internal desc = Could not create volume "pvc-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx": could not create volume in EC2: UnauthorizedOperation: You are not authorized to perform this operation. Encoded authorization failure message: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx