Add capabilities for jvmti.

Make a skeleton for jvmti capabilities.

Bug: 31455788
Test: m -j40 test-art-host

Change-Id: Ia1f96450d8a1ee59b9db66cf65492154d61fab48
diff --git a/test/ti-agent/common_helper.h b/test/ti-agent/common_helper.h
index 9aeb98c..84997f3 100644
--- a/test/ti-agent/common_helper.h
+++ b/test/ti-agent/common_helper.h
@@ -53,6 +53,12 @@
   return ret.release();
 }
 
+static void SetAllCapabilities(jvmtiEnv* env) {
+  jvmtiCapabilities caps;
+  env->GetPotentialCapabilities(&caps);
+  env->AddCapabilities(&caps);
+}
+
 }  // namespace art
 
 #endif  // ART_TEST_TI_AGENT_COMMON_HELPER_H_