i40e: Remove 100M SGMII unless hw is X722

i40e: Remove 100M SGMII unless hw is X722

Orabug: 22342532

Only the X722 device now supports 100M SGMII, and nothing supports
100M on 1000Base_T.

Change-ID: I6f44dcd818944edd40041410e6de380f4a359a0c
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
(cherry picked from commit 3b6c2179eebf4536d08cf966c9f585dd95c72367)
Signed-off-by: Brian Maly <brian.maly@oracle.com>