sysbench: use device busybox binary
sysbench: use device busybox binary

Use the full path to busybox on the target device as opposed to
assuming it is found on the path.

jimboatarm/workload-automation,jimboatarm/workload-automation,jimboatarm/workload-automation,Sticklyman1936/workload-automation,Sticklyman1936/workload-automation,ep1cman/workload-automation,chase-qi/workload-automation,ep1cman/workload-automation,ep1cman/workload-automation,bathepawan/workload-automation,muendelezaji/workload-automation,muendelezaji/workload-automation,bjackman/workload-automation,bathepawan/workload-automation,muendelezaji/workload-automation,Sticklyman1936/workload-automation,chase-qi/workload-automation,muendelezaji/workload-automation,chase-qi/workload-automation,bathepawan/workload-automation,jimboatarm/workload-automation,chase-qi/workload-automation,bjackman/workload-automation,chase-qi/workload-automation,bjackman/workload-automation,muendelezaji/workload-automation,ep1cman/workload-automation,Sticklyman1936/workload-automation,bathepawan/workload-automation,ep1cman/workload-automation,bjackman/workload-automation,muendelezaji/workload-automation,bjackman/workload-automation,bathepawan/workload-automation,Sticklyman1936/workload-automation,chase-qi/workload-automation,jimboatarm/workload-automation,Sticklyman1936/workload-automation,ep1cman/workload-automation,bathepawan/workload-automation,bjackman/workload-automation,jimboatarm/workload-automation