Make rw-core timeout default to 30s
This is to allow enough buffer time post adapter container restart to
reconcile and also re-establish peer adapter connections. Otherwise
we have seen core timing out installing flows post container restart.

Change-Id: Ic95c8b3afe6d946529e66c087f5988843f15b8c2
diff --git a/voltha/values.yaml b/voltha/values.yaml
index f703115..c2dd843 100644
--- a/voltha/values.yaml
+++ b/voltha/values.yaml
@@ -27,8 +27,8 @@
   image_tag: ~
   image_pullPolicy: "Always"
   rw_core:
-    rpc_timeout: "10s"
-    internal_timeout: "10s"
+    rpc_timeout: "30s"
+    internal_timeout: "30s"
   # Configure Log Correlation
   log_correlation:
     enabled: true