spdx: Simplify BSD-2-Clause AND BSD-2-Clause

After removing the -FreeBSD and -NetBSD, we're left with a nuber of
BSD-2-Clause AND BSD-2-Clause, so tidy that up.

Discussed with:		pfg
MFC After:		3 days
Sponsored by:		Netflix

sys/arm/freescale/imx/imx51_ccm.c

@@ -1,6 +1,6 @@
 /*	$NetBSD: imx51_ccm.c,v 1.1 2012/04/17 09:33:31 bsh Exp $	*/
 /*-
- * SPDX-License-Identifier: BSD-2-Clause AND BSD-2-Clause
+ * SPDX-License-Identifier: BSD-2-Clause
  *
  * Copyright (c) 2010, 2011, 2012  Genetec Corporation.  All rights reserved.
  * Written by Hashimoto Kenichi for Genetec Corporation.

sys/arm/freescale/imx/imx51_ccmreg.h

@@ -1,6 +1,6 @@
 /*	$NetBSD: imx51_ccmreg.h,v 1.1 2012/04/17 09:33:31 bsh Exp $	*/
 /*-
- * SPDX-License-Identifier: BSD-2-Clause AND BSD-2-Clause
+ * SPDX-License-Identifier: BSD-2-Clause
  *
  * Copyright (c) 2011, 2012  Genetec Corporation.  All rights reserved.
  * Written by Hashimoto Kenichi for Genetec Corporation.

sys/arm/freescale/imx/imx51_ccmvar.h

@@ -1,6 +1,6 @@
 /*	$NetBSD: imx51_ccmvar.h,v 1.1 2012/04/17 09:33:31 bsh Exp $	*/
 /*-
- * SPDX-License-Identifier: BSD-2-Clause AND BSD-2-Clause
+ * SPDX-License-Identifier: BSD-2-Clause
  *
  * Copyright (c) 2012  Genetec Corporation.  All rights reserved.
  * Written by Hashimoto Kenichi for Genetec Corporation.

sys/arm/freescale/imx/imx51_dpllreg.h

@@ -1,6 +1,6 @@
 /*	$NetBSD: imx51_dpllreg.h,v 1.1 2012/04/17 09:33:31 bsh Exp $	*/
 /*-
- * SPDX-License-Identifier: BSD-2-Clause AND BSD-2-Clause
+ * SPDX-License-Identifier: BSD-2-Clause
  *
  * Copyright (c) 2012  Genetec Corporation.  All rights reserved.
  * Written by Hashimoto Kenichi for Genetec Corporation.

sys/arm/freescale/imx/imx51_ipuv3reg.h

@@ -1,6 +1,6 @@
 /*	$NetBSD: imx51_ipuv3reg.h,v 1.1 2012/04/17 10:19:57 bsh Exp $	*/
 /*-
- * SPDX-License-Identifier: BSD-2-Clause AND BSD-2-Clause
+ * SPDX-License-Identifier: BSD-2-Clause
  *
  * Copyright (c) 2011, 2012  Genetec Corporation.  All rights reserved.
  * Written by Hashimoto Kenichi for Genetec Corporation.

sys/arm/freescale/imx/imx51_tzicreg.h

@@ -1,6 +1,6 @@
 /*	$NetBSD: imx51_tzicreg.h,v 1.1 2010/11/13 07:11:03 bsh Exp $	*/
 /*-
- * SPDX-License-Identifier: BSD-2-Clause AND BSD-2-Clause
+ * SPDX-License-Identifier: BSD-2-Clause
  *
  * Copyright (c) 2010  Genetec Corporation.  All rights reserved.
  * Written by Hashimoto Kenichi for Genetec Corporation.