ice: use designated initializers for TSPLL consts

ice: use designated initializers for TSPLL consts

Instead of multiple comments, use designated initializers for TSPLL
consts.

Adjust ice_tspll_params_e82x fields sizes.

Reviewed-by: Michal Kubiak <michal.kubiak@intel.com>
Reviewed-by: Milena Olech <milena.olech@intel.com>
Signed-off-by: Karol Kolacinski <karol.kolacinski@intel.com>
Tested-by: Rinitha S <sx.rinitha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>