greybus: greybus_manifest.h: add BSD license so that firmware can share it.
diff --git a/drivers/staging/greybus/greybus_manifest.h b/drivers/staging/greybus/greybus_manifest.h
index d31eb68..4fd27d3 100644
--- a/drivers/staging/greybus/greybus_manifest.h
+++ b/drivers/staging/greybus/greybus_manifest.h
@@ -6,7 +6,7 @@
  *
  * Copyright 2014 Google Inc.
  *
- * Released under the GPLv2 only.
+ * Released under the GPLv2 and BSD licenses.
  */
 
 #ifndef __GREYBUS_MANIFEST_H