ixgbe: adds x550 specific FCoE offloads

Adds x550 specific FCoE offloads for DDP context programming and
increased DDP exchanges.

Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --cc drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c
Simple merge

diff --cc drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.h
Simple merge

diff --cc drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
Simple merge