With the deprecation of chameleon hardware, currently there is no test infrastructure for Bluetooth LE HID (mouse and keyboard) tests.

Task is to incorporate nRF52 hardware into the Fizz+chameleond setup and update autotest scripts to use this. This is partially based on work done by wongmatthew@ in https://chromium-review.googlesource.com/q/owner:wongmatthew%2540google.com