[SO] Update chart with service account

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

Issue-ID: OOM-2718
Signed-off-by: farida azmy <farida.azmy.ext@orange.com>
Change-Id: Ic17b8d9307216a7feeceefe6a1e6f0fe4839a637
diff --git a/kubernetes/so/components/so-mariadb/requirements.yaml b/kubernetes/so/components/so-mariadb/requirements.yaml
index a9e9697..b182a70 100755
--- a/kubernetes/so/components/so-mariadb/requirements.yaml
+++ b/kubernetes/so/components/so-mariadb/requirements.yaml
@@ -24,3 +24,6 @@
   - name: readinessCheck
     version: ~8.x-0
     repository: '@local'
+  - name: serviceAccount
+    version: ~8.x-0
+    repository: '@local'