lib/math/int_log: Replace LGPL-2.1-or-later boilerplate with SPDX identifier

Replace license boilerplate in udftime.c with SPDX identifier for
LGPL-2.1-or-later.

Acked-by: Mauro Carvalho Chehab <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Andy Shevchenko <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

include/linux/int_log.h

···
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 /*
  * Provides fixed-point logarithm operations.
  *
  * Copyright (C) 2006 Christoph Pfister ([e-mail])
- *
- * This library is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as
- * published by the Free Software Foundation; either version 2.1 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Lesser General Public License for more details.
  */
 
 #ifndef __LINUX_INT_LOG_H

lib/math/int_log.c

···
+// SPDX-License-Identifier: LGPL-2.1-or-later
 /*
  * Provides fixed-point logarithm operations.
  *
  * Copyright (C) 2006 Christoph Pfister ([e-mail])
- *
- * This library is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as
- * published by the Free Software Foundation; either version 2.1 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Lesser General Public License for more details.
  */
 
 #include <linux/bitops.h>