Actually, the NPU demos were not making use of the NPU, just the CPU. To enable the NPU usage,
it is required to add the external delegate library 'tflite-vx-delegate'to the system. This is
done by forcing 'tensorflow-lite' to depend on it for the CCMP2 platform, which also requires
'tim-vx' library as a build dependency.
Both the 'tflite-vx-delegate' and 'tim-vx' recipes have been verbatim copied from the ST Beta
branch, using commit with SHA256: 68686850c75061f1c7c4e756a313a41ca810f6ae
Signed-off-by: David Escalona <david.escalona@digi.com>
1de1fae447