Staging: unisys: mark drivers as BROKEN

Turns out these drivers like to mess around with the system even if the
hardware they control isn't present.  That's not good, and people are
starting to report lots of issues with this in their build/boot testing.

So for now, let's just mark them as BROKEN, until the code gets
converted to use the proper driver model interaction (i.e. don't do
anything until the hardware is actually found in the system.)

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Reported-by: Sasha Levin <sasha.levin@oracle.com>
Cc: Benjamin Romer <benjamin.romer@unisys.com>
Cc: David Kershner <david.kershner@unisys.com>
Cc: someone <sparmaintainer@unisys.com>
Cc: Ken Cox <jkc@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>