greybus: svc_msg.h: add bsd license to file so that firmware can use it.
diff --git a/drivers/staging/greybus/svc_msg.h b/drivers/staging/greybus/svc_msg.h
index 1f8b4f1..57d0a91 100644
--- a/drivers/staging/greybus/svc_msg.h
+++ b/drivers/staging/greybus/svc_msg.h
@@ -6,7 +6,7 @@
  *
  * Copyright 2014 Google Inc.
  *
- * Released under the GPLv2 only.
+ * Released under the GPLv2 and BSD license.
  */
 
 #ifndef __SVC_MSG_H