Add more SPDX-License-Identifier tags

In a number of places we had wordings of the GPL (or LGPL in a few
cases) license text that were split in such a way that it wasn't caught
previously.  Convert all of these to the correct SPDX-License-Identifier
tag.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/drivers/usb/musb-new/omap2430.h b/drivers/usb/musb-new/omap2430.h
index 3b795c2..56998c7 100644
--- a/drivers/usb/musb-new/omap2430.h
+++ b/drivers/usb/musb-new/omap2430.h
@@ -1,10 +1,7 @@
 /*
  * Copyright (C) 2005-2006 by Texas Instruments
  *
- * The Inventra Controller Driver for Linux is free software; you
- * can redistribute it and/or modify it under the terms of the GNU
- * General Public License version 2 as published by the Free Software
- * Foundation.
+ * SPDX-License-Identifier:	GPL-2.0
  */
 
 #ifndef __MUSB_OMAP243X_H__