MLECO-2968 Create a docker image with all requirements

Added a Dockerfile to setup and install requirements for
the ml-embedded-evaluation-kit repository.

Also included minor change (MLCE-859) for NPU components'
source file.

Signed-off-by: Matthew Sloyan <matthew.sloyan@arm.com>
Change-Id: I621fb2991218a451a0e8c33e14032b9c9e36709e