If user created the capture device using the API and not via
the shell, then the device name was not set. Use the default
capture device in this case.
Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>
As the common.h is only meant to be used by the network
shell files, rename it to be more descriptive in order to
avoid possible conflicts with any other common.h file.
Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>