Stress test scripts for the Media Controller

Those scripts help to test the memory barriers at the Media Controller core/drivers, and the lifetime management of the objects allocated at the media core

Script nameDescription Generic routine to unbind/bind USB devices on an endless loop Continuously bind/unbing au0828 Calls mc_nexgen_test on an endless loop Calls media-ctl --print-dot an endless loop Continuously bind/unbind snd-usb-audio Unbinds a USB driver Continuously bind/unbind uvcvideo