This provides the documentation of scope required as a stage towards
removing deprecation for CONFIG_MULTITHREADING=n. The specific lists
of what does work will follow as the code base is inspected and
updated.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
