Added support for Adaptive QoS policies that have been pre-created on
the storage system, with the NetApp driver and clustered ONTAP version
9.4 or higher. To use this feature, configure a Cinder volume type with
the following extra-specs::
netapp:qos_policy_group=<name_of_precreated_aqos_policy>
netapp:qos_policy_group_is_adaptive="<is> True"
Note that a cluster scoped account must be used in the driver
configuration in order to use QoS in clustered ONTAP.
Partially-implements: bp netapp-adaptive-qos-support
Co-Authored-By: Lucio Seki <lucioseki@gmail.com>
Change-Id: Idcdbd042bb10f7381048fe4cb9fb870c3eebb6ce
7f6c42c0be