i40e: Store the requested FEC information

i40e: Store the requested FEC information

Store information about FEC modes, that were requested. It will be used
in printing link status information function and this way there is no
need to call admin queue there.

Signed-off-by: Mariusz Stachura <mariusz.stachura@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Orabug: 26785018
(cherry picked from commit ed601f660131be6bb9a8a109b0f2bf031786100f)
Signed-off-by: Jack Vogel <jack.vogel@oracle.com>
Reviewed-by: Kyle Fortin <kyle.fortin@oracle.com>