Add CKSUM_GOOD flag to distinguish a good checksum from an unknown one. Since vector Rx supports checksum offload, this patch removes the hw_ip_checksum check in fm10k_rx_vec_condition_check(). Signed-off-by: Xiao Wang <xiao.w.wang@intel.com> Acked-by: Jing Chen <jing.d.chen@intel.com>