Currently in a systemd based init, the httpd server is not launched. A
systemd service is needed, so add it.
Also install a CGI script that allows to use the device for the
NetworkManager connectivity check.
https://jira.digi.com/browse/DEL-6577
Signed-off-by: Javier Viguera <javier.viguera@digi.com>
Latest update to version 1.29.3 in upstream breaks the compatibility
of our bbappend, to avoid it in future updates, this commit
generalizes the bbappend to apply all the 1.29 series.
Signed-off-by: Arturo Buzarra <arturo.buzarra@digi.com>