systemd-conf: do not ask for DHCP if configured on kernel command line
In cases where we configure the IP address and more on the kernel
command line with ip= we should not ask for DHCP with systemd-networkd
later on. We have such a setup with our runqemu script.
With this match in place we can also deploy this unit on qemu systems.
Signed-off-by: Stefan Schmidt <stefan.schmidt@huawei.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>