Bluetooth native dumpsys logging support (1/5)

Bug: 18508263
Change-Id: Id7b69a6ed7d817a0f048cb8ebf0889c600171926
diff --git a/include/hardware/bluetooth.h b/include/hardware/bluetooth.h
index 1be4009..d68225f 100644
--- a/include/hardware/bluetooth.h
+++ b/include/hardware/bluetooth.h
@@ -534,6 +534,12 @@
       * Success indicates that the VSC command was sent to controller
       */
     int (*read_energy_info)();
+
+    /**
+     * Native support for dumpsys function
+     * Function is synchronous and |fd| is owned by caller.
+     */
+    void (*dump)(int fd);
 } bt_interface_t;
 
 /** TODO: Need to add APIs for Service Discovery, Service authorization and