Update PNaCl LLVM REV.
Update PNaCl LLVM REV.

e8e0569 Allow pnacl-freeze/thaw to redirect to stdin/stdout.
7b64d98 Fix build warnings/UB in LTOCodeGenerator.cpp

BUG= https://code.google.com/p/nativeclient/issues/detail?id=3405
R=jvoung@google.com

Review URL: https://codereview.chromium.org/15013002

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@11301 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

Lind-Project/native_client,Lind-Project/native_client,Lind-Project/native_client,Lind-Project/native_client,Lind-Project/native_client,Lind-Project/native_client