MdeModulePkg: Change OPTIONAL keyword usage style

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3760

Update all use of ', OPTIONAL' to ' OPTIONAL,' for function params.

Cc: Andrew Fish <afish@apple.com>
Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Michael Kubacki <michael.kubacki@microsoft.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>

MdeModulePkg/Library/SmmSmiHandlerProfileLib/MmSmiHandlerProfileLib.c

@@ -40,7 +40,7 @@ SmiHandlerProfileRegisterHandler (
   IN EFI_GUID                       *HandlerGuid,
   IN EFI_SMM_HANDLER_ENTRY_POINT2   Handler,
   IN PHYSICAL_ADDRESS               CallerAddress,
-  IN VOID                           *Context, OPTIONAL
+  IN VOID                           *Context  OPTIONAL,
   IN UINTN                          ContextSize OPTIONAL
   )
 {
@@ -72,7 +72,7 @@ EFIAPI
 SmiHandlerProfileUnregisterHandler (
   IN EFI_GUID                       *HandlerGuid,
   IN EFI_SMM_HANDLER_ENTRY_POINT2   Handler,
-  IN VOID                           *Context, OPTIONAL
+  IN VOID                           *Context  OPTIONAL,
   IN UINTN                          ContextSize OPTIONAL
   )
 {
@@ -99,4 +99,3 @@ MmSmiHandlerProfileLibInitialization (
            );
   return EFI_SUCCESS;
 }
-