dumpstate: Add dumpstate device AIDL HAL

- Add interface AIDL files
- Add default example service. Example service is setup as a
  lazy service.
- Add VTS test having same coverage as dumpstate device HIDL
  1.1 VTS tests

Bug: 205760700
Test: VtsHalDumpstateTargetTest, dumpstate, dumpstate_test, dumpsys
Change-Id: I63f177af5e1e16cad392ce594f1b438e5610d757
diff --git a/dumpstate/aidl/Android.bp b/dumpstate/aidl/Android.bp
new file mode 100644
index 0000000..e18eade
--- /dev/null
+++ b/dumpstate/aidl/Android.bp
@@ -0,0 +1,43 @@
+// Copyright (C) 2021 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 "hardware_interfaces_license"
+    // to get the below license kinds:
+    //   SPDX-license-identifier-Apache-2.0
+    default_applicable_licenses: ["hardware_interfaces_license"],
+}
+
+aidl_interface {
+    name: "android.hardware.dumpstate",
+    vendor_available: true,
+    srcs: ["android/hardware/dumpstate/*.aidl"],
+    stability: "vintf",
+    backend: {
+        cpp: {
+            enabled: false,
+        },
+        java: {
+            enabled: false,
+        },
+        ndk: {
+            separate_platform_variant: false,
+            vndk: {
+                enabled: true,
+            },
+        },
+    },
+}