udev: Directory for custom device nodes.

[Bill Nottingham]

Harald Hoyer (harald at redhat.com) said: 
> Due to
> https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=144593
> I am thinking of another directory to put device nodes in, which should 
> be copied over to /dev on system start.
> 
> Any suggestions?

I'd think that a series of makedev invocations to run would be
safer.

Bill