qlcnic: Enable IPv6 LRO even if IP address is not programmed

o Enabling BIT_9 while configuring hardware LRO allows adapter to
  perform LRO even if destination IP address is not programmed in adapter.

Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>