[DCAEGEN2] Update chart with service account

Add service account to requirements.yaml,
values.yaml and deployment/statefulset.

Issue-ID: OOM-2726
Signed-off-by: farida azmy <farida.azmy.ext@orange.com>
Co-authored-by: Sylvain Desbureaux <sylvain.desbureaux@orange.com>
Change-Id: I6bafed3c621f4e7b1a307bc9338334586eb6795e
Signed-off-by: Abdelmuhaimen Seaudi <abdelmuhaimen.seaudi@orange.com>
diff --git a/kubernetes/dcaegen2/components/dcae-deployment-handler/values.yaml b/kubernetes/dcaegen2/components/dcae-deployment-handler/values.yaml
index fc4d07d..3435462 100644
--- a/kubernetes/dcaegen2/components/dcae-deployment-handler/values.yaml
+++ b/kubernetes/dcaegen2/components/dcae-deployment-handler/values.yaml
@@ -91,3 +91,8 @@
 # Kubernetes namespace for components deployed via Cloudify manager
 # If empty, use the common namespace
 # dcae_ns: "dcae"
+
+serviceAccount:
+  nameOverride: dcae-deployment-handler
+  roles:
+    - read