net/i40e: fix VLAN offload setting
net/i40e: fix VLAN offload setting

Vlan offload flag "rx_mode.hw_vlan_extend" should be considerred at
rte_eth_dev_configure stage as well as "rx_mode.hw_vlan_strip" and
"rx_mode.hw_vlan_filter".

Fixes: 4861cde46116 ("i40e: new poll mode driver")
Cc: stable@dpdk.org

Signed-off-by: Qi Zhang <9e9e58ffa71a29bb7b87766b362515be648fcbe0@intel.com>
Acked-by: Beilei Xing <7fb7e49de6d75fb4140bfcdada52e66859d93ebd@intel.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk