PNaCl toolchain build: tell configure to ignore bindings.
PNaCl toolchain build: tell configure to ignore bindings.

LLVM's bindings will try to build ocaml-related things when ocaml is present on the machine, and the later scripts can't handle this very well. Most machines don't have ocaml, so we hadn't seen this issue yet.

R=dschuff@chromium.org
BUG= https://code.google.com/p/nativeclient/issues/detail?id=3719
NOTRY=true

Review URL: https://codereview.chromium.org/150553003

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@12689 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

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