Fix build on XE2+

on XE2+
code
  {$IFDEF COMPILER16_UP}
  ColorStates: array[Boolean] of TStyleColor = (scEditDisabled, scEdit);
  FontColorStates: array[Boolean] of TStyleFont = (sfEditBoxTextDisabled, sfEditBoxTextNormal);
  {$ENDIF COMPILER16_UP}

use type from VCL.Themes