[PATCH citron] Fail configure. This driver is unmaintained.

[Mark Kettenis]

> Date: Wed, 01 Dec 2010 21:31:04 -0800
> From: Alan Coopersmith <alan.coopersmith at oracle.com>
> 
> The MAINTAINERS file already says it's deactivated.

Where does the MAINTAINERS file live?  I should probably list myself
there for x86-video-mach64.