IntelFsp2Pkg/FspSecCore: Use UefiCpuLib.

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2825

UefiCpuLib has API InitializeFloatingPointUnits.
Remove internal copy of InitializeFloatingPointUnits
in FspSecCoreM, use UefiCpuLib API.

This change also avoid later potential conflict when
use UefiCpuLib for FspSecCoreM module.

Signed-off-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Chasel Chiu <chasel.chiu@intel.com>
Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
Cc: Star Zeng <star.zeng@intel.com>

IntelFsp2Pkg/FspSecCore/SecMain.h

@@ -21,6 +21,7 @@
 #include <Library/SerialPortLib.h>
 #include <Library/FspSwitchStackLib.h>
 #include <Library/FspCommonLib.h>
+#include <Library/UefiCpuLib.h>
 #include <FspEas.h>
 
 typedef VOID (*PEI_CORE_ENTRY) ( \
@@ -80,20 +81,6 @@ SecTemporaryRamSupport (
   IN UINTN                    CopySize
   );
 
-/**
-  Initializes floating point units for requirement of UEFI specification.
-
-  This function initializes floating-point control word to 0x027F (all exceptions
-  masked,double-precision, round-to-nearest) and multimedia-extensions control word
-  (if supported) to 0x1F80 (all exceptions masked, round-to-nearest, flush to zero
-  for masked underflow).
-
-**/
-VOID
-EFIAPI
-InitializeFloatingPointUnits (
-  VOID
-  );
 
 /**