Using latest openolt-adapter

Change-Id: I3ed9ab2b49b576a791f2888fa55b71f796367d1e
diff --git a/voltha-stack/Chart.yaml b/voltha-stack/Chart.yaml
index c195c12..eefd49f 100644
--- a/voltha-stack/Chart.yaml
+++ b/voltha-stack/Chart.yaml
@@ -28,7 +28,7 @@
 name: voltha-stack
 
 appVersion: "1.0"
-version: 0.1.11
+version: 0.1.12
 
 dependencies:
   - name: voltha
@@ -41,5 +41,5 @@
     condition: voltha-adapter-openonu.enabled
   - name: voltha-adapter-openolt
     repository: file://../voltha-adapter-openolt
-    version: 2.8.5
+    version: 2.8.6
     condition: voltha-adapter-openolt.enabled