PNaCl: Update LLVM revision in pnacl/DEPS
PNaCl: Update LLVM revision in pnacl/DEPS

This pulls in the following LLVM changes:

b32a697: (jvoung@chromium.org) PNaCl gep expansion: avoid mul by 1 for i8 arrays.
012feeb: (mseaborn@chromium.org) PNaCl ABI checker: Check for normal form introduced by ReplacePtrsWithInts

BUG= https://code.google.com/p/nativeclient/issues/detail?id=3343
TEST=PNaCl toolchain trybots

Review URL: https://codereview.chromium.org/15993015

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@11465 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client