ml-eval-kit: Build individual libraries

Instead of building the whole project as an external project,
only build the necessary libraries.

Rename BuildMLEmbeddedEvaluationKit.cmake to
SetupMlEmbeddedEvaluationKitLibraries.cmake

This change also uses the NPU driver component from
ML Evaluation Kit which results in the following changes:
* Modify initialization of NPU in AI applications to use
  API provided by the component
* Add ICache and DCache enablement options as caches are used
  in the NPU component
* Include various patches for the NPU component.
* Remove ML Evaluation Kit device drivers header files
  inclusions as they are no longer used as we are now using
  the NPU component for initializing the NPU.

Signed-off-by: Gabor Abonyi <gabor.abonyi@arm.com>