updating fabric-adapter for fabric-umbrella

Change-Id: Ia1ef50c4a4975fe39c4f139dfb4f2d51a73724b8
diff --git a/aether-roc-umbrella/values.yaml b/aether-roc-umbrella/values.yaml
index 683daf7..6ff6fa6 100644
--- a/aether-roc-umbrella/values.yaml
+++ b/aether-roc-umbrella/values.yaml
@@ -251,7 +251,7 @@
   kubeStateMetrics:
     enabled: false
   alertmanager:
-    configMapOverrideName: alertmanager
+    enabled: false
   serverFiles:
     alerting_rules.yml:
      groups: