Create new CTS test for tethering

Initial CTS test for tethering.
This change test startTethering/stopTethering and check
status of TETHER_STATE_CHANGE intent.

Bug: 145490751
Test: atest CtsTetheringTest
Change-Id: Ia1ae3b6c2b68b009ca4deef840945186d472d99e
diff --git a/tests/cts/tethering/Android.bp b/tests/cts/tethering/Android.bp
new file mode 100644
index 0000000..7b16879
--- /dev/null
+++ b/tests/cts/tethering/Android.bp
@@ -0,0 +1,43 @@
+// Copyright (C) 2019 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.
+
+android_test {
+    name: "CtsTetheringTest",
+    defaults: ["cts_defaults"],
+
+    libs: [
+        "android.test.base.stubs",
+    ],
+
+    srcs: [
+        "src/**/*.java",
+    ],
+
+    static_libs: [
+        "compatibility-device-util-axt",
+        "ctstestrunner-axt",
+        "junit",
+        "junit-params",
+    ],
+
+    // Change to system current when TetheringManager move to bootclass path.
+    platform_apis: true,
+
+    // Tag this module as a cts test artifact
+    test_suites: [
+        "cts",
+        "general-tests",
+    ],
+
+}