[PATCH] USB: g_file_storage: use module_param_array_named macro

Randy Dunlap pointed out that there now is a module_param_array_named
macro available.  This patch (as666) updates g_file_storage to make use of
it.  It also adds a comment listing the specifications documents used in
the design of the driver's SCSI operation (at Pat LaVarre's request).

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>