qlcnic: fix default operating state of interface

Currently interface shows status as RUNNING, even if there is no link.
To fix this, netif_carrier_off should be called qlcnic_open().

Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>