ART: Re-enable TI tests for target

Fix invalid null handle for dlsym on arm32. Fix missing cast in
dispatch.

Remove the test black-list.

Bug: 31681198
Test: m test-art-target-run-test (bullhead)
Change-Id: I3edc68421933330b4361fb9e49d4e5ff4966a4ff
diff --git a/runtime/openjdkjvmti/events.cc b/runtime/openjdkjvmti/events.cc
index 7182055..d3f8001 100644
--- a/runtime/openjdkjvmti/events.cc
+++ b/runtime/openjdkjvmti/events.cc
@@ -212,7 +212,7 @@
                               thread.get(),
                               object.get(),
                               klass.get(),
-                              byte_count);
+                              static_cast<jlong>(byte_count));
     }
   }