Staging: comedi: add adl_pci9118 driver

For ADLink cards:
	PCI-9118DG, PCI-9118HG, PCI-9118HR

From: Michal Dobes <dobes@tesnet.cz>
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>