the ServiceMonitor depends on:
* monitoring.enabled (availability of prometheus-operator)
* csi.serviceMonitor.enabled, to create the ServiceMonitor
* csi.enableGrpcMetrics and csi.enableLiveness to enable their
respective endpoints in the ServiceMonitor
Signed-off-by: Cyril Jouve <jv.cyril@gmail.com>
(cherry picked from commit 6b0a8cadfc)