monitoring: Add nvmeof overview grafana dashboard

Signed-off-by: Vallari Agrawal <[email protected]>

Author: VallariAg

monitoring/ceph-mixin/dashboards.libsonnet

@@ -10,5 +10,6 @@
     (import 'dashboards/rgw-s3-analytics.libsonnet') +
     (import 'dashboards/multi-cluster.libsonnet') +
     (import 'dashboards/smb-overview.libsonnet') +
+    (import 'dashboards/ceph-nvmeof.libsonnet') +
     { _config:: $._config },
 }