The main reason is allowing to run on 6LoWPAN devices, though also to
demonstrate IPv6 support with BSD Sockets in general.
Tested on 96b_carbon.
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
This is how it's called in the main docs, so use this same phrase in
Kconfig and samples too.
Also, added some articles to docs.
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>