[DCAEMOD] Update chart with service account

Add service account to requirements, values & deployment/statefulset

Issue-ID: OOM-2827
Signed-off-by: farida azmy <farida.azmy.ext@orange.com>
Change-Id: Icdf48ad2b443b0c360ee89b13cae5a0db6c74dce
diff --git a/kubernetes/dcaemod/components/dcaemod-nifi-registry/values.yaml b/kubernetes/dcaemod/components/dcaemod-nifi-registry/values.yaml
index 25b3b9e..a0bbacc 100644
--- a/kubernetes/dcaemod/components/dcaemod-nifi-registry/values.yaml
+++ b/kubernetes/dcaemod/components/dcaemod-nifi-registry/values.yaml
@@ -88,3 +88,9 @@
       cpu: 2
       memory: 2Gi
   unlimited: {}
+
+#Pods Service Account
+serviceAccount:
+  nameOverride: dcaemod-nifi-registry
+  roles:
+    - read