Naming scheme is now: ei_device_<capability>_configure_<what>. So far the
range is the only one where we had to deal with the same thing for two
different capabilities and it's unlikely we'll have to have different keymaps
for different capabilities. But still, let's do this now while it's still
easy.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
