Split combined downstream and upstream device ports
Currently we have a number of device ports which contain both upstream and downstream configurations.
Since we plan to change the device categorization a bit (see assigned milestone) we should split these ports into an upstream and a downstream version, and for this we can re-use the existing split used by some devices: upstream port goes into testing/community/main, downstream port goes into archived.
After these splits, we can cleanly move all the downstream ports to a new downstream category, and only keep the upstream ones in testing.
In other words, Archived category is for downstream ports when there's a mainline port also available. When there's only a downstream port available, then it will be placed in downstream.
For review: Best check the diff with --find-copies=15, the default view is not very usable.