Makes HUbDeviceNonBlock compile only under FreeRTOS, since it relies on ioctl that do not exist elsewhere.
Makes HUbDeviceNonBlock compile only under FreeRTOS, since it relies on ioctl that do not exist elsewhere.

bakerstu/openmrn,bakerstu/openmrn,bakerstu/openmrn,bakerstu/openmrn,bakerstu/openmrn,bakerstu/openmrn