iwl3945: fix queue allocation

commit 6f98613258b966ffe0e6def18129b386514d10e0
Author: Jay Sternberg <jay.e.sternberg@intel.com>
Date:   Sat Sep 18 09:07:04 2010 -0700

    iwlagn: reduce redundant parameter definitions

broke 3945 because Jay accidentally removed the
num_of_queues parameter for 3945, so that we now
attempt to allocate a zero-sized queue array,
which leads to SLUB returning ZERO_SIZE_PTR (0x10)
which we then try to dereference thus crashing the
system. Restore the necessary num_of_queues param.

This fixes
http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2254

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>