Fix JIT options with late init

Previously we couldn't create the JIT since we didn't have any
JITOptions.

Bug: 19735273

Change-Id: I24b8ed131ed8b18f75ec94291e135d8a1c089ebd
diff --git a/runtime/runtime.h b/runtime/runtime.h
index 3cf22bf..7f33547 100644
--- a/runtime/runtime.h
+++ b/runtime/runtime.h
@@ -540,6 +540,7 @@
     return zygote_max_failed_boots_;
   }
 
+  // Create the JIT and instrumentation and code cache.
   void CreateJit();
 
   ArenaPool* GetArenaPool() {
@@ -549,6 +550,10 @@
     return arena_pool_.get();
   }
 
+  jit::JitOptions* GetJITOptions() {
+    return jit_options_.get();
+  }
+
  private:
   static void InitPlatformSignalHandlers();