It is often confusing for users and developers alike to see the sentence
"stable API change" in a label or in the release notes. Stable APIs can
change in at least two ways (retaining compatibility or not), and so it
is preferrable to use a term that clearly describes the change as
incompatible, by using the common term "breaking".
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>