ixgbe: Cleanup configuration of FCoE registers

This change makes it so we always use the FCoE redirection table.  We just
set all 8 entries to the same value in the case of only having one queue
for FCoE.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>