i40e: Report advertised link modes on 40GBase_LR4, CR4 and fibre

Add assignments for advertising 40GBase_LR4, 40GBase_CR4 and fibre

Signed-off-by: Adam Ludkiewicz <adam.ludkiewicz@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>