Expose initializing the native target for the execution engine.

llvm-svn: 81800
diff --git a/llvm/bindings/ocaml/executionengine/llvm_executionengine.ml b/llvm/bindings/ocaml/executionengine/llvm_executionengine.ml
index cf9acc7..c9e8f18 100644
--- a/llvm/bindings/ocaml/executionengine/llvm_executionengine.ml
+++ b/llvm/bindings/ocaml/executionengine/llvm_executionengine.ml
@@ -109,3 +109,6 @@
   
    *)
 end
+
+external initialize_native_target : unit -> bool
+                                  = "llvm_initialize_native_target"