ceph: fix csi blocker owner deletion

Small regression introduced in https://github.com/rook/rook/commit/26c8fd9bd14178d74dcc28f009e5c2f658224436
which was overriding the BlockOwnerDeletion from the ownerref.
Now, if set we don't modify it.
This fixes deployments on OCP.

Signed-off-by: Sébastien Han <seb@redhat.com>

pkg/operator/k8sutil/resources.go

@@ -99,9 +99,14 @@ func (info *OwnerInfo) SetControllerReference(object metav1.Object) error {
 	if err != nil {
 		return err
 	}
-	blockOwnerDeletion := true
+
+	// Do not override the BlockOwnerDeletion is already set
+	if info.ownerRef.BlockOwnerDeletion == nil {
+		blockOwnerDeletion := true
+		info.ownerRef.BlockOwnerDeletion = &blockOwnerDeletion
+	}
+
 	controller := true
-	info.ownerRef.BlockOwnerDeletion = &blockOwnerDeletion
 	info.ownerRef.Controller = &controller
 	SetOwnerRef(object, info.ownerRef)
 	return nil