UefiCpuPkg/PiSmmCpuDxeSmm: Make code consistent with comments

1.Remove "out" attribute for " Buffer" parameter in function header.
2.Add "out" attribute for " Token" parameter in function header.
3.Update ProcedureArgument to ProcedureArguments.

Cc: Eric Dong <eric.dong@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Shenglei Zhang <shenglei.zhang@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>

UefiCpuPkg/PiSmmCpuDxeSmm/MpService.c

@@ -1404,7 +1404,7 @@ InternalSmmStartupAllAPs (
 EFI_STATUS
 EFIAPI
 ProcedureWrapper (
-  IN OUT VOID *Buffer
+  IN     VOID *Buffer
   )
 {
   PROCEDURE_WRAPPER *Wrapper;