coresight: support for etr to usb output

Support for etr to usb trace output using QDSS BAM to USB BAM
transfers.

Change-Id: Ibb6f8d0cf1d9799668cb22ccaa13966139c8dea5
Signed-off-by: Pratik Patel <pratikp@codeaurora.org>
diff --git a/include/linux/coresight.h b/include/linux/coresight.h
index 04fcd88..3bba69c 100644
--- a/include/linux/coresight.h
+++ b/include/linux/coresight.h
@@ -1,4 +1,4 @@
-/* Copyright (c) 2012, Code Aurora Forum. All rights reserved.
+/* Copyright (c) 2012, The Linux Foundation. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 and
@@ -45,6 +45,7 @@
 };
 
 enum coresight_dev_type {
+	CORESIGHT_DEV_TYPE_NONE,
 	CORESIGHT_DEV_TYPE_SINK,
 	CORESIGHT_DEV_TYPE_LINK,
 	CORESIGHT_DEV_TYPE_LINKSINK,