Adding Processor Firmware Interface Table (FIT) related defines & structures Cc: Jiewen Yao <jiewen.yao@intel.com> Cc: Michael Kinney <michael.d.kinney@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Giri P Mudusuru <giri.p.mudusuru@intel.com> Reviewed-by: Jiewen Yao <jiewen.yao@intel.com> Reviewed-by: Michael Kinney <michael.d.kinney@intel.com>