gateone: add config file

The config file changes some options to have a lower latency for key input

Based on https://github.com/liftoff/meta-oe/commit/9cb653845d7bb4416d2e8e6c5a09a54e08dd7578

 by Dan McDougall

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>