lightweight hash/MAC support

Jacob Morales Gonzalez <jacobinho86@...>

Hi, currently i am working on a benchmark project of the following light weight crypto hash and mac primitives:

Currently (as far as i know) there are baremetal software implementations for ATtiny Devices (, that ignore portability, and i think it is worth to integrate that functionality into the zephyr project, because it'll add light weight crypto protocols that are starting to be used in its fields of application: