Update external logging

[Hex-Davis]

Current Behavior

The external logging seems to be outdated. The Openlog Artemis is able to log at a baud of 500,000

Desired Behavior

support for the Openlog Artemis in general, support in the ports tab for higher peripheral baud rates, and some updates to the Black box setup guide reflecting the changes.

Suggested Solution

verify higher peripheral baud rates are possible and create an option in the peripherals under the ports tab for the higher values

Who does this impact? Who is this for?

anyone using a FC without full Blackbox support ie. H7, F7...

Additional context