Bumping minor versions after VOLTHA-2.7 release

Change-Id: I9acfc611280826f13ec4845f3f2932e1d42571f4
diff --git a/voltha-adapter-openolt/Chart.yaml b/voltha-adapter-openolt/Chart.yaml
index 002985d..fb26816 100644
--- a/voltha-adapter-openolt/Chart.yaml
+++ b/voltha-adapter-openolt/Chart.yaml
@@ -14,7 +14,7 @@
 ---
 apiVersion: "v1"
 name: "voltha-adapter-openolt"
-version: "2.8.8"
+version: "2.9.0-dev"
 description: "A Helm chart for Voltha OpenOLT Adapter"
 keywords:
   - "onf"
diff --git a/voltha-adapter-openonu/Chart.yaml b/voltha-adapter-openonu/Chart.yaml
index 5fb6bfb..f18efec 100644
--- a/voltha-adapter-openonu/Chart.yaml
+++ b/voltha-adapter-openonu/Chart.yaml
@@ -14,7 +14,7 @@
 ---
 apiVersion: "v1"
 name: "voltha-adapter-openonu"
-version: "2.7.15"
+version: "2.8.0-dev"
 description: "A Helm chart for Voltha OpenONU Adapter"
 keywords:
   - "onf"
diff --git a/voltha-infra/Chart.yaml b/voltha-infra/Chart.yaml
index 0802435..b739443 100644
--- a/voltha-infra/Chart.yaml
+++ b/voltha-infra/Chart.yaml
@@ -28,8 +28,8 @@
     url: "https://www.opennetworking.org"
 name: voltha-infra
 
-appVersion: "1.0"
-version: 0.1.13
+appVersion: "2.8-dev"
+version: 0.2.0-dev
 
 dependencies:
   - name: onos-classic
diff --git a/voltha-stack/Chart.yaml b/voltha-stack/Chart.yaml
index 74398ba..6d0f1fe 100644
--- a/voltha-stack/Chart.yaml
+++ b/voltha-stack/Chart.yaml
@@ -27,8 +27,8 @@
     url: "https://www.opennetworking.org"
 name: voltha-stack
 
-appVersion: "1.0"
-version: 0.1.17
+appVersion: "2.8-dev"
+version: 0.2.0-dev
 
 dependencies:
   - name: voltha
diff --git a/voltha/Chart.yaml b/voltha/Chart.yaml
index 17203d0..074d271 100644
--- a/voltha/Chart.yaml
+++ b/voltha/Chart.yaml
@@ -14,7 +14,7 @@
 ---
 apiVersion: "v1"
 name: "voltha"
-version: "2.8.3"
+version: "2.9.0-dev"
 description: "A Helm chart for Voltha based on K8S resources in Voltha project"
 keywords:
   - "onf"