Increasing the rpc timeouts of olt adapter so that the grpc retries wont be exhausted by the time voltha core recovers from a crash

Change-Id: Ib6f58fe01046ddcb8ce71f89faa2351bae9b487e
diff --git a/voltha-stack/Chart.yaml b/voltha-stack/Chart.yaml
index 1edb483..5b4e020 100644
--- a/voltha-stack/Chart.yaml
+++ b/voltha-stack/Chart.yaml
@@ -27,11 +27,11 @@
     url: "https://www.opennetworking.org"
 name: voltha-stack
 appVersion: "2.12"
-version: 2.12.2
+version: 2.12.3
 dependencies:
   - name: voltha
     repository: file://../voltha
-    version: 2.12.3
+    version: 2.12.6
     condition: voltha.enabled
   - name: voltha-adapter-openonu
     repository: file://../voltha-adapter-openonu
@@ -39,7 +39,7 @@
     condition: voltha-adapter-openonu.enabled
   - name: voltha-adapter-openolt
     repository: file://../voltha-adapter-openolt
-    version: 2.12.1
+    version: 2.12.4
     condition: voltha-adapter-openolt.enabled
   - name: voltha-go-controller
     repository: file://../voltha-go-controller