Staging: comedi: add me_daq driver

This adds the me_daq comedi driver to the build.

From: Michael Hillmann <hillmann@syscongroup.de>
Cc: David Schleef <ds@schleef.org>
Cc: Frank Mori Hess <fmhess@users.sourceforge.net>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>