swupdate: don't set default mongoose port in args
Avoid setting the mongoose listing port in the command line arg list.
This is unnecessary as it is the default one and it makes it harder to
change it, as it overrides the user's choice in swupdate.cfg.
Removing it should not have any impact on existing configurations.
Signed-off-by: Oliver Kästner <okaestner@rosen-nxt.com>
Oliver Kaestner