NET: cdc-phonet, fix stop-queue handling

Currently there is a warning emitted by the cdc-phonet driver:
WARNING: at include/linux/netdevice.h:1557 usbpn_probe+0x3bb/0x3f0 [cdc_phonet]()
Modules linked in: ...
Pid: 5877, comm: insmod Not tainted 2.6.37.3-16-desktop #1
Call Trace:
 [<ffffffff810059b9>] dump_trace+0x79/0x340
 [<ffffffff81520fdc>] dump_stack+0x69/0x6f
 [<ffffffff810580eb>] warn_slowpath_common+0x7b/0xc0
 [<ffffffffa00254fb>] usbpn_probe+0x3bb/0x3f0 [cdc_phonet]
...
---[ end trace f5d3e02908603ab4 ]---
netif_stop_queue() cannot be called before register_netdev()

So remove netif_stop_queue from the probe funtction to avoid that.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Rémi Denis-Courmont <remi.denis-courmont@nokia.com>
Cc: David S. Miller <davem@davemloft.net>
Acked-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>