Add a note about about the deprecation of current USB device support. Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
Add a reference to the BOS support API. Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
Mostly moved and reorganised content to the Connectivity chapter, separated API references. Fill in some gaps in the USB device documentation. Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>