net/iavf: support flow mark in AVX path
net/iavf: support flow mark in AVX path

Support Flow Director mark ID parsing from Flex
Rx descriptor in AVX path.

Signed-off-by: Leyi Rong <a64575982df652f4749a148e140caaa64f8b1459@intel.com>
Reviewed-by: Qi Zhang <9e9e58ffa71a29bb7b87766b362515be648fcbe0@intel.com>

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