Merge pull request #12315 from tlevine/trackpoint-typo

trackpoint: fix typo in trackpoint speed description

nixos/modules/tasks/trackpoint.nix

···
         example = 255;
         type = types.int;
         description = ''
-          Configure the trackpoint sensitivity. By default, the kernel
+          Configure the trackpoint speed. By default, the kernel
           configures 97.
         '';
       };