Bumping minor versions after VOLTHA-2.7 release

Change-Id: I9acfc611280826f13ec4845f3f2932e1d42571f4
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