opencv: disable libav support in opencv so we don't require setting a commercial license in our recipe
opencv: disable libav support in opencv so we don't require setting a commercial license in our recipe

(meta-clanton rev: 83a48b1046e908bc6c3218a439634beb95d79110)

Signed-off-by: Brendan Le Foll <3e0e8c4069934e8b47d99704927a85c66c0ceb33@intel.com>
Signed-off-by: Saul Wold <5d406dce269323502edf9245f3ac4bf2666d3bf9@linux.intel.com>

tripzero/meta-intel-iot-middleware,gizero/meta-intel-iot-middleware,GuojianZhou/meta-intel-iot-middleware,andreivasiliu2211/meta-intel-iot-middleware