This application was initially intended to be a manual, interactive
sample, run by a user. However, it's also a useful real-world
integration test, to be run in automated CI systems. So, provide
a config suitable for such a usage: use local host machine as a
server (to not depend on availability and characteristics of an
Internet connection), and have a concrete completion criteria
(by limiting number of iterations; given that performance of TCP
is not to be not too high, limit it to just 1 for now).
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>