Add TPM2 implementation.

signed off by: jiewen.yao@intel.com
reviewed by: guo.dong@intel.com

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14687 6f19259b-4bc3-4df7-8a09-765794883524

SecurityPkg/VariableAuthenticated/RuntimeDxe/VariableSmm.c

@@ -50,6 +50,23 @@ UINTN                                                mVariableBufferPayloadSize;
 extern BOOLEAN                                       mEndOfDxe;
 extern BOOLEAN                                       mEnableLocking;
 
+/**
+  SecureBoot Hook for SetVariable.
+
+  @param[in] VariableName                 Name of Variable to be found.
+  @param[in] VendorGuid                   Variable vendor GUID.
+
+**/
+VOID
+EFIAPI
+SecureBootHook (
+  IN CHAR16                                 *VariableName,
+  IN EFI_GUID                               *VendorGuid
+  )
+{
+  return ;
+}
+
 /**
 
   This code sets variable in storage blocks (Volatile or Non-Volatile).