Fixing livelock caused by lf stuff (or at least making it harder to hit).

src/xenia/cpu/xenon_thread_state.cc

@@ -33,6 +33,7 @@ XenonThreadState::XenonThreadState(XenonRuntime* runtime, uint32_t thread_id,
 
   // Stash pointers to common structures that callbacks may need.
   context_->reserve_address = memory_->reserve_address();
+  context_->reserve_value = memory_->reserve_value();
   context_->membase = memory_->membase();
   context_->runtime = runtime;
   context_->thread_state = this;