Blacklist Traxdata CDR4120 and IOMEGA Zip drive to avoid lock ups.

BugLink: http://bugs.launchpad.net/bugs/823296

commit 82103978189e9731658cd32da5eb85ab7b8542b8 upstream.

This patch resulted from the discussion at
https://bugzilla.novell.com/show_bug.cgi?id=679277,
https://bugzilla.novell.com/show_bug.cgi?id=681840 .

Signed-off-by: Werner Fink <werner@novell.com>
Signed-off-by: Ankit Jain <jankit@suse.de>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>