Add support in the isolator to perform write operations on a signature

Signed-off-by: Caleb Palmer <cnpalmer@us.ibm.com>
Change-Id: Ia1f189a8ce7d1d71efc0ae81942151c31d63a4f5
diff --git a/test/simulator/testcases/meson.build b/test/simulator/testcases/meson.build
index 5d9e306..0e894cd 100644
--- a/test/simulator/testcases/meson.build
+++ b/test/simulator/testcases/meson.build
@@ -6,5 +6,6 @@
     'exp20_tlx_err_rpt_1.cpp',
     'omi_dl_fatal.cpp',
     'tod_fault.cpp',
+    'ody_mcbist2.cpp',
 )