vibrator: add initial forcefeedback vibrator HAL

This HAL talks to vibrators which are exposed as input devices using the
forcefeedback API.

This version includes lots of debugging spam.
diff --git a/vibrator/Android.bp b/vibrator/Android.bp
new file mode 100644
index 0000000..653457c
--- /dev/null
+++ b/vibrator/Android.bp
@@ -0,0 +1,31 @@
+//
+// 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.
+cc_binary {
+    name: "android.hardware.vibrator@1.1-service.sdm845",
+    vendor: true,
+    relative_install_path: "hw",
+    init_rc: ["android.hardware.vibrator@1.1-service.sdm845.rc"],
+    srcs: ["service.cpp", "Vibrator.cpp"],
+    cflags: ["-Wall", "-Werror"],
+    shared_libs: [
+        "libhidlbase",
+        "libcutils",
+        "liblog",
+        "libutils",
+        "libhardware",
+        "android.hardware.vibrator@1.0",
+        "android.hardware.vibrator@1.1",
+    ],
+}