Update onos artifact & chart verison

[VOL-5282] - Debug hang in volthaStackDeploy (=> onos)

Change-Id: Ie7ef2f1d0753c6b44594adc149bb3a531e2725f2
diff --git a/voltha-stack/Chart.yaml b/voltha-stack/Chart.yaml
index eb299f0..2c7aa6a 100644
--- a/voltha-stack/Chart.yaml
+++ b/voltha-stack/Chart.yaml
@@ -34,7 +34,7 @@
 
 ## Chart version for package voltha-stack
 ##   Increment when Chart.yaml changes
-version    : "2.12.8"
+version    : "2.12.9"
 
 # -----------------------------------------------------------------------
 # NOTE: Dependencies are chart versions not component/repository version
@@ -43,7 +43,7 @@
 dependencies:
   - name       : voltha
     repository : file://../voltha
-    version    : "2.12.16"
+    version    : "2.12.17"
     condition  : voltha.enabled
   - name       : "voltha-adapter-openonu"
     repository : "file://../voltha-adapter-openonu"