Initial definition of the Dumpstate HIDL interfaces.

BUG: 31982882
Test: manually built it

Change-Id: I3dd1d681061d16059ec9cf67869f20759fb75cd0
diff --git a/dumpstate/1.0/IDumpstateDevice.hal b/dumpstate/1.0/IDumpstateDevice.hal
new file mode 100644
index 0000000..fec3eb4
--- /dev/null
+++ b/dumpstate/1.0/IDumpstateDevice.hal
@@ -0,0 +1,24 @@
+/*
+ * 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.
+ */
+
+package android.hardware.dumpstate@1.0;
+
+interface IDumpstateDevice {
+    /*
+     * Dumps device-specific state into the given file descriptor.
+     */
+    dumpstateBoard(handle h);
+};