This adds and installs a simple systemd service for ser2net.
The service is only started in case a non-zero configuration file
/etc/ser2net/ser2net.yaml exists.
Additionally, this configuration file a marked as such in the recipe.
Signed-off-by: Michael Heimpold <mhei@heimpold.de>
Signed-off-by: Khem Raj <raj.khem@gmail.com>