cec: copy hidl hal

* Copy from hardware/interfaces/tv/cec/1.0/default
  at b04e2f3df5ebbbeea46f555d0965357f05aa1457.

cec/service.cpp

@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2016 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.
+ */
+
+#define LOG_TAG "android.hardware.tv.cec@1.0-service"
+
+#include <android/hardware/tv/cec/1.0/IHdmiCec.h>
+#include <hidl/LegacySupport.h>
+
+using android::hardware::tv::cec::V1_0::IHdmiCec;
+using android::hardware::defaultPassthroughServiceImplementation;
+
+int main() {
+    return defaultPassthroughServiceImplementation<IHdmiCec>();
+}