Fix System32 vs Sysnative for x86 python

BUG=495944
R=sebmarchand@chromium.org

Review URL: https://codereview.chromium.org/1162003009

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@295527 0039d316-1c4b-4281-b951-d872f2087c98

win_toolchain/package_from_installed.py

@@ -155,7 +155,7 @@ def BuildFileList():
     for system_crt_file in system_crt_files:
         result.append((os.path.join(r'C:\Windows\SysWOW64', system_crt_file),
                        os.path.join('sys32', system_crt_file)))
-        result.append((os.path.join(r'C:\Windows\System32', system_crt_file),
+        result.append((os.path.join(r'C:\Windows\Sysnative', system_crt_file),
                        os.path.join('sys64', system_crt_file)))
 
   # Generically drop all arm stuff that we don't need.