treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_298.RULE

Based on the normalized pattern:

this package 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 this package is provided as
is and without any express or implied warranties including without
limitation the implied warranties of merchantibility and fitness for a
particular purpose

extracted by the scancode license scanner the SPDX license identifier

GPL-2.0-only

has been chosen to replace the boilerplate/reference.

Reviewed-by: Allison Randal <allison@lohutok.net>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

ARM: omap1: make headers more local

Some header files are never included outside of a mach-omap1
directory and do not need to be made visible in include/mach,
so let's just move them all down one level.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Tony Lindgren <tony@atomide.com>