This patch changes the ROSE protocol to allocate an array of pointers and each network device
separately.  This sets up later change where network_device object's are released on last use
which may be after the module is unloaded.

The patch is against 2.6.0-test2 (though this code hasn't changed in a long time).


Allocation is done via alloc_netdev so the dev->priv area is already reserved and
doesn't need to be allocated separately.