Bumping voltha core chart

Change-Id: I6d4acc47e50d362cda06944875f2d85c20d7eefa
diff --git a/.gitreview b/.gitreview
index 2b11b97..243818c 100644
--- a/.gitreview
+++ b/.gitreview
@@ -3,3 +3,4 @@
 port=29418
 project=voltha-helm-charts.git
 defaultremote=origin
+defaultbranch=voltha-2.5
diff --git a/VERSION b/VERSION
index 437459c..73462a5 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.5.0
+2.5.1
diff --git a/voltha/Chart.yaml b/voltha/Chart.yaml
index a786a97..4cf71b9 100644
--- a/voltha/Chart.yaml
+++ b/voltha/Chart.yaml
@@ -14,7 +14,7 @@
 ---
 apiVersion: "v1"
 name: "voltha"
-version: "2.6.1"
+version: "2.6.2"
 description: "A Helm chart for Voltha based on K8S resources in Voltha project"
 keywords:
   - "onf"
diff --git a/voltha/values.yaml b/voltha/values.yaml
index 09e3942..37596d1 100644
--- a/voltha/values.yaml
+++ b/voltha/values.yaml
@@ -102,5 +102,5 @@
   rw_core:
     registry: '{{ .Values.defaults.image_registry }}'
     repository: '{{ .Values.defaults.image_org }}voltha-rw-core'
-    tag: '{{- if hasKey .Values.defaults "image_tag" }}{{- if .Values.defaults.image_tag }}{{ .Values.defaults.image_tag }}{{- else }}2.5.3{{- end }}{{- else }}2.5.3{{- end }}'
+    tag: '{{- if hasKey .Values.defaults "image_tag" }}{{- if .Values.defaults.image_tag }}{{ .Values.defaults.image_tag }}{{- else }}2.5.4{{- end }}{{- else }}2.5.4{{- end }}'
     pullPolicy: '{{ .Values.defaults.image_pullPolicy }}'