[VOL-5359] Add redis option as KVStore

Change-Id: Iacf583f53a2b00e9f0afd49c51ffb6be616e9b9b
Signed-off-by: abhay <abhayk@radisys.com>
diff --git a/voltha/values.yaml b/voltha/values.yaml
index 7a601e3..8712f7e 100644
--- a/voltha/values.yaml
+++ b/voltha/values.yaml
@@ -59,8 +59,10 @@
     cluster:
       address: kafka:9092
 
-  # Define connectivity to etcd
-  etcd:
+  # Define connectivity to kv store
+  kvstore:
+    # type: etcd, redis or redis-sentinel
+    type: etcd
     address: etcd:2379
 
   # Define Tracing Agent connection details