Instead of just having one vol_id package, create a 'udevextras' package
for all of the udev "EXTRAS" utilities. Selecting this package allows
each extra to be selected individually.
Also, installing udevextras adds a few udev rules for persistent device
naming.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
SVN-Revision: 10805
