SecurityPkg: 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: Jian J Wang <jian.j.wang@intel.com>

SecurityPkg/Tcg/TcgConfigDxe/TcgConfigImpl.c

@@ -56,7 +56,7 @@ HII_VENDOR_DEVICE_PATH          mTcgHiiVendorDevicePath = {
 EFI_STATUS
 GetTpmState (
   IN  EFI_TCG_PROTOCOL          *TcgProtocol,
-  OUT BOOLEAN                   *TpmEnable,  OPTIONAL
+  OUT BOOLEAN                   *TpmEnable   OPTIONAL,
   OUT BOOLEAN                   *TpmActivate OPTIONAL
   )
 {