systemc: Mark a test as expected to fail.

This test expects to exit with an error.

Change-Id: Id0b1ae4967ad0b8a356c7a04ed5fe9eb2f3c6641
Reviewed-on: https://gem5-review.googlesource.com/c/13324
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>
diff --git a/src/systemc/tests/systemc/bugs/constructor_throw/expected_returncode b/src/systemc/tests/systemc/bugs/constructor_throw/expected_returncode
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/src/systemc/tests/systemc/bugs/constructor_throw/expected_returncode
@@ -0,0 +1 @@
+1