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/include/usb/ulpi.h b/include/usb/ulpi.h
index 99166c4..4fa765b 100644
--- a/include/usb/ulpi.h
+++ b/include/usb/ulpi.h
@@ -13,9 +13,7 @@
  * Original Copyrights follow:
  * Copyright (C) 2010 Nokia Corporation
  *
- * This software is distributed under the terms of the GNU General
- * Public License ("GPL") as published by the Free Software Foundation,
- * version 2 of that License.
+ * SPDX-License-Identifier:	GPL-2.0
  */
 
 #ifndef __USB_ULPI_H__