Exclude test_com.android.tethering from R snapshot

Bug: 218685706
Test: BUILD_NUMBER=fixed packages/modules/common/build/mainline_modules_sdks.sh --build-release=R
      # Run before and after making this change and verify that the
      # only difference is to remove test_com.android.tethering.
      atest --no-bazel-mode --host mainline_modules_sdks_test
Change-Id: Ic24ce4afbe9f84b1afd65dca9cee2154dc436646

build/mainline_modules_sdks_test_data/tethering_for_r_Android.bp

@@ -0,0 +1,45 @@
+// DO NOT EDIT. Auto-generated by the following:
+//     path/to/mainline_modules_sdks.sh
+//
+// Copyright (C) 2020 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.
+//
+
+java_sdk_library_import {
+    name: "framework-tethering",
+    owner: "google",
+    prefer: true,
+    shared_library: false,
+    apex_available: [
+        "com.android.tethering",
+    ],
+    public: {
+        jars: ["public/framework-tethering-stubs.jar"],
+        current_api: "public/framework-tethering.txt",
+        removed_api: "public/framework-tethering-removed.txt",
+        sdk_version: "module_current",
+    },
+    system: {
+        jars: ["system/framework-tethering-stubs.jar"],
+        current_api: "system/framework-tethering.txt",
+        removed_api: "system/framework-tethering-removed.txt",
+        sdk_version: "module_current",
+    },
+    module_lib: {
+        jars: ["module-lib/framework-tethering-stubs.jar"],
+        current_api: "module-lib/framework-tethering.txt",
+        removed_api: "module-lib/framework-tethering-removed.txt",
+        sdk_version: "module_current",
+    },
+}