net/iavf: align to new VLAN offload name
net/iavf: align to new VLAN offload name

Since the VLAN offload virtchnl message name has been renamed to setting
style, the internal Ethernet type setting name needs be changed to avoid
confusing.

Signed-off-by: Haiyue Wang <037d5f2d0d83548aebdad8ba0c69c0b30ec44c86@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