correct preprocessor define now used

parameters/ParameterHelper.cpp

@@ -48,7 +48,7 @@ ReturnValue_t ParameterHelper::handleParameterMessage(CommandMessage *message) {
         ConstStorageAccessor accessor(storeId);
         result = storage->getData(storeId, accessor);
         if (result != HasReturnvaluesIF::RETURN_OK) {
-#if CPP_OSTREAM_ENABLED == 1
+#if FSFW_CPP_OSTREAM_ENABLED == 1
             sif::error << "ParameterHelper::handleParameterMessage: Getting"
                     << " store data failed for load command." << std::endl;
 #endif