Fill device state (#1869)
Fill device state (#1869)

* Fill device state

The device plugin emits a value upon connecting, but does not fill the
internal state with this value.

Because of this, data will always be sent for the first two poll
intervals, even if nothing has changed.

Always fill the state, even when resolving the initial future.

Signed-off-by: Joe Grund <06d81316378f5e1e8ce132d1348b3633ffa33f28@whamcloud.io>

* Update iml-agent/src/daemon_plugins/device.rs
intel-hpdd/intel-manager-for-lustre,intel-hpdd/intel-manager-for-lustre,intel-hpdd/intel-manager-for-lustre