ping in raw mode does some set up and sets timeout, but clean
up procedure is missing. That is needed for case if PING_RESULT() macro
is used for application exit.
Also implement stop functionality when using sockets.
Running ping is stopped when calling ping_init() again.
Signed-off-by: Maxim Uvarov <maxim.uvarov@linaro.org>
Signed-off-by: Simon Goldschmidt <goldsimon@gmx.de>
4e6dd9c576