recentfling: Add the ability to specify the device_name
recentfling: Add the ability to specify the device_name

Not all devices are supported by recentfling, but there is usually a
device that is supported and has a similar screensize.  Let the
recentfling workload specify the device to let us run it on more
devices.

jimboatarm/workload-automation,jimboatarm/workload-automation,jimboatarm/workload-automation,jimboatarm/workload-automation,jimboatarm/workload-automation,jimboatarm/workload-automation