[POLICY] Update chart with service account

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

Issue-ID: OOM-2725
Signed-off-by: farida azmy <farida.azmy.ext@orange.com>
Co-authored-by: Sylvain Desbureaux <sylvain.desbureaux@orange.com>
Change-Id: I67c689d65ff004c3919256449d0bfaf976514a93
diff --git a/kubernetes/policy/components/policy-clamp-be/values.yaml b/kubernetes/policy/components/policy-clamp-be/values.yaml
index 71d2517..dcbe59c 100644
--- a/kubernetes/policy/components/policy-clamp-be/values.yaml
+++ b/kubernetes/policy/components/policy-clamp-be/values.yaml
@@ -156,3 +156,9 @@
       cpu: 10m
       memory: 3Gi
   unlimited: {}
+
+#Pods Service Account
+serviceAccount:
+  nameOverride: policy-clamp-be
+  roles:
+    - read