Adds the compatibility build task and cts_v2 rules.

Change-Id: If7939dba38566f26cbc678da3fe7cb605c19745a
diff --git a/core/tasks/cts_v2.mk b/core/tasks/cts_v2.mk
new file mode 100644
index 0000000..76a4d02
--- /dev/null
+++ b/core/tasks/cts_v2.mk
@@ -0,0 +1,23 @@
+# Copyright (C) 2015 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+test_suite_name := cts_v2
+test_suite_tradefed := cts-tradefed_v2
+test_suite_readme := cts/tools/cts-tradefed/README
+
+include $(BUILD_SYSTEM)/tasks/tools/compatibility.mk
+
+.PHONY: cts_v2
+cts_v2: $(compatibility_zip)
+$(call dist-for-goals, cts_v2, $(compatibility_zip))