build tools will break if PEIM or DXE driver has no valid [Depex] section.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9057 6f19259b-4bc3-4df7-8a09-765794883524

BaseTools/Source/Python/AutoGen/AutoGen.py

@@ -1,7 +1,7 @@
 ## @file
 # Generate AutoGen.h, AutoGen.c and *.depex files
 #
-# Copyright (c) 2007, Intel Corporation
+# Copyright (c) 2007 - 2009, Intel Corporation
 # All rights reserved. This program and the accompanying materials
 # are licensed and made available under the terms and conditions of the BSD License
 # which accompanies this distribution.  The full text of the license may be found at
@@ -1814,6 +1814,10 @@ class ModuleAutoGen(AutoGen):
             else:
                 IgoredAutoGenList.append(str(File))
 
+        # Skip the following code for EDK I inf
+        if self.AutoGenVersion < 0x00010005:
+            return
+
         for ModuleType in self.DepexList:
             if len(self.DepexList[ModuleType]) == 0:
                 continue