Add dalvik.system to run-libcore-tests.sh

Change-Id: I64c5dfb7fbb0c337befb57e2d7bebc14b022cf85
diff --git a/tools/run-libcore-tests.sh b/tools/run-libcore-tests.sh
index 344d2ded..4e76eb4 100755
--- a/tools/run-libcore-tests.sh
+++ b/tools/run-libcore-tests.sh
@@ -33,7 +33,8 @@
 fi
 
 # Packages that currently work correctly with the expectation files.
-working_packages=("libcore.icu"
+working_packages=("dalvik.system"
+                  "libcore.icu"
                   "libcore.io"
                   "libcore.java.lang"
                   "libcore.java.math"