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

This pulls in the following LLVM change:

964ea03: (dschuff@chromium.org) Revert "PNaCl translator: combine insertelement / extractelement patterns generated by the toolchain into shufflevector"

BUG= https://code.google.com/p/nativeclient/issues/detail?id=2205
TEST= PNaCl toolchain trybots

Review URL: https://codereview.chromium.org/294023003

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@13214 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

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