Backport of #9920 to release-1.18.
Enables datamover backup/restore of CSI volumes that require
namespace-scoped secrets/configmaps for provisioning (e.g., ODF/ceph-csi
encrypted volumes with Vault KMS). Adds secretNames/configMapNames to the
backupPVC/restorePVC node-agent config; the CSI snapshot and generic
restore exposers copy the named resources from the source/target
namespace to the Velero namespace before creating the intermediate PVC,
and clean them up afterward (labeled with the owner UID). Adds the
corresponding RBAC for secrets/configmaps.
Signed-off-by: Shubham Pampattiwar <spampatt@redhat.com>