Ensure simulator does not re-initialize same chip type

Change-Id: I4bf3dd45ca30a977dd629acf8e4654c5385fac30
Signed-off-by: Zane Shelley <zshelle@us.ibm.com>
diff --git a/test/hei_operator_register_testcase.cpp b/test/hei_operator_register_testcase.cpp
index 803bd39..47cb53e 100644
--- a/test/hei_operator_register_testcase.cpp
+++ b/test/hei_operator_register_testcase.cpp
@@ -17,7 +17,7 @@
 int main()
 {
 
-    Chip my_chip;
+    Chip my_chip{nullptr, 0};
     size_t constant1 = CONSTANT1;
     size_t constant2 = CONSTANT2;