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>