Update pnacl llvm revision
Update pnacl llvm revision

80b7ba7 Make abbreviations explicit in pnacl-freeze/thaw.
5019000 Promote bswap i16, i32, and i64 to be allowed llvm intrinsics.

Related CL: https://codereview.chromium.org/14813032

R=dschuff@chromium.org

Review URL: https://codereview.chromium.org/15692007

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@11401 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