Add broadcast_media_mounted method to android device
Add broadcast_media_mounted method to android device

New method to force a re-index of the mediaserver cache for the
specified directory. Used in workloads that require external media files
as dependencies.

bjackman/workload-automation,jimboatarm/workload-automation,Sticklyman1936/workload-automation,bathepawan/workload-automation,bjackman/workload-automation,bjackman/workload-automation,Sticklyman1936/workload-automation,bathepawan/workload-automation,bathepawan/workload-automation,bjackman/workload-automation,jimboatarm/workload-automation,ep1cman/workload-automation,jimboatarm/workload-automation,ep1cman/workload-automation,ep1cman/workload-automation,Sticklyman1936/workload-automation,jimboatarm/workload-automation,ep1cman/workload-automation,bathepawan/workload-automation,jimboatarm/workload-automation,ep1cman/workload-automation,bjackman/workload-automation,bathepawan/workload-automation,bathepawan/workload-automation,bjackman/workload-automation,Sticklyman1936/workload-automation,Sticklyman1936/workload-automation,Sticklyman1936/workload-automation,ep1cman/workload-automation,jimboatarm/workload-automation