VOL-1690: Use revision based compaction

Defaults to keeping 10 change revisions in etcd
Also use current 3.4.1 etcd

Change-Id: I458861a61c6a78ee0fc6f9579447eb13e597827a
diff --git a/voltha-etcd-cluster/Chart.yaml b/voltha-etcd-cluster/Chart.yaml
index b0923bc..4f9f6de 100644
--- a/voltha-etcd-cluster/Chart.yaml
+++ b/voltha-etcd-cluster/Chart.yaml
@@ -17,4 +17,4 @@
 description: Create an etcd-cluster using etcd-operator provided CRD
 icon: https://guide.opencord.org/logos/cord.svg
 name: voltha-etcd-cluster
-version: 2.1.0
+version: 2.1.1