Try to make intel compiler happy

cpp/particles/lock_free_bool_array.hpp

@@ -66,8 +66,9 @@ public:
     void lock(const long int inKey){
         Locker* k = keys[inKey%keys.size()].get();
         if(k->ownerId.load() != omp_get_thread_num()){
+            int localBusy = Busy;// Intel complains if we pass a const as last param
             int expected = Available;
-            while(!std::atomic_compare_exchange_strong(&k->lock, &expected, Busy)){
+            while(!std::atomic_compare_exchange_strong(&k->lock, &expected, localBusy)){
                 usleep(1);
                 expected = Available;
             }