drivers/base: base.h: add proper copyright and header info

base.h didn't have any copyright information in it, so update it with
the correct information.

Cc: "Rafael J. Wysocki" <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

Author: gregkh

drivers/base/base.h

@@ -1,4 +1,15 @@
 /* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2001-2003 Patrick Mochel <[email protected]>
+ * Copyright (c) 2004-2009 Greg Kroah-Hartman <[email protected]>
+ * Copyright (c) 2008-2012 Novell Inc.
+ * Copyright (c) 2012-2019 Greg Kroah-Hartman <[email protected]>
+ * Copyright (c) 2012-2019 Linux Foundation
+ *
+ * Core driver model functions and structures that should not be
+ * shared outside of the drivers/base/ directory.
+ *
+ */
 #include <linux/notifier.h>
 
 /**