Add a linter requiring Nullability Annotations

-This linter only check Java source and its public methods.
-Apply to method return type not primitives or void.
-Apply to method parameters not primitives.
-Check the android.annotation.NonNull / android.annotation.Nullable
 to replace with androidx.annotation.NonNull / androidx.annotation.Nullable.

Bug: 307770597
Test: manual test
Change-Id: I32422e23c8387c52e9f0cad3e5833b2cab1fa842
diff --git a/packages/SettingsLib/LintChecker/Android.bp b/packages/SettingsLib/LintChecker/Android.bp
new file mode 100644
index 0000000..eb489b1
--- /dev/null
+++ b/packages/SettingsLib/LintChecker/Android.bp
@@ -0,0 +1,33 @@
+// Copyright (C) 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.
+
+package {
+    // See: http://go/android-license-faq
+    // A large-scale-change added 'default_applicable_licenses' to import
+    // all of the 'license_kinds' from "frameworks_base_license"
+    // to get the below license kinds:
+    //   SPDX-license-identifier-Apache-2.0
+    default_applicable_licenses: ["frameworks_base_license"],
+}
+
+java_library_host {
+    name: "SettingsLibLintChecker",
+    srcs: ["src/**/*.kt"],
+    plugins: ["auto_service_plugin"],
+    libs: [
+        "auto_service_annotations",
+        "lint_api",
+    ],
+    kotlincflags: ["-Xjvm-default=all"],
+}