Both the MR12 and MR16 are single gigabit ethernet devices, similar to the
MR18. This change gives them the correct network config on a fresh install.
Signed-off-by: Chris Blake <chrisrblake93@gmail.com>
[Jo-Philipp Wich: adjust for alphabetical ordering, line wrap commit msg]
Signed-off-by: Jo-Philipp Wich <jo@mein.io>