SimicsOpenBoardPkg: Replace CMOS Hardcoded Addresses

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2330



Changes:
* Added CmosMap.h that defines CMOS addresses used in
  SimicsOpenBoardPkg as macros

* Replaced hardcoded CMOS addresses with the macros
  defined in CmosMap.h

Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
Cc: Michael Kubacki <michael.a.kubacki@intel.com>
Signed-off-by: Prince Agyeman <prince.agyeman@intel.com>
Reviewed-by: Nate DeSimone <nathaniel.l.desimone@intel.com>
Reviewed-by: Michael Kubacki <michael.a.kubacki@intel.com>