IA2: Introduce bta_disc_test

For testing legacy device and service discovery

Bug: 298523541
Test: atest bt_host_test_bta
Change-Id: I8e8e260ada3f90e2b77b2a6aba756effa613aa92

system/bta/Android.bp

@@ -405,6 +405,7 @@ cc_test {
         "test/bta_ag_sco_test.cc",
         "test/bta_api_test.cc",
         "test/bta_av_test.cc",
+        "test/bta_disc_test.cc",
         "test/bta_dm_cust_uuid_test.cc",
         "test/bta_dm_test.cc",
         "test/bta_gatt_test.cc",

system/bta/test/bta_disc_test.cc

+/*
+ * Copyright 2023 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.
+ */
+
+#include <base/strings/stringprintf.h>
+#include <gmock/gmock.h>
+#include <gtest/gtest.h>
+#include <sys/socket.h>
+
+// Test hooks
+namespace bluetooth {
+namespace legacy {
+namespace testing {}  // namespace testing
+}  // namespace legacy
+}  // namespace bluetooth
+
+class BtaDiscTest : public testing::Test {
+ protected:
+  void SetUp() override {}
+
+  void TearDown() override {}
+};
+
+TEST_F(BtaDiscTest, nop) {}