[COMMON] Fix PV/PVC for postgres

When creating https://gerrit.onap.org/r/c/oom/+/99478, forgot to
backport storage class part of https://gerrit.onap.org/r/c/oom/+/98962.

Issue-ID: OOM-2234
Issue-ID: OOM-1227
Signed-off-by: Sylvain Desbureaux <sylvain.desbureaux@orange.com>
Change-Id: I3c42b28ad5bea67eda004b0209c8a21783b539f1
diff --git a/kubernetes/common/postgres/templates/pvc-replica.yaml b/kubernetes/common/postgres/templates/pvc-replica.yaml
index f740521..41199b6 100644
--- a/kubernetes/common/postgres/templates/pvc-replica.yaml
+++ b/kubernetes/common/postgres/templates/pvc-replica.yaml
@@ -36,5 +36,9 @@
   resources:
     requests:
       storage: {{ .Values.persistence.size }}
+{{- if include "common.needPV" . }}
   storageClassName: "{{ include "common.fullname" . }}-replica"
+{{- else }}
+  storageClassName: {{ include "common.storageClass" . }}
+{{- end }}
 {{- end -}}