SimicsOpenBoardPkg: Change Guid name to fix build error

MinPlatformPkg now use gEfiSmmSmramMemoryGuid instead of
gEfiSmmPeiSmramMemoryReserveGuid to build memory HOB.
SimicsOpenBoardPkg need to update for it accordingly.

Cc: Hao Wu <hao.a.wu@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Ankit Sinha <ankit.sinha@intel.com>
Cc: Agyeman Prince <prince.agyeman@intel.com>
Cc: Kubacki Michael A <michael.a.kubacki@intel.com>
Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>

Signed-off-by: David Wei <david.y.wei@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Michael Kubacki <michael.a.kubacki@intel.com>