Add checkkconfigsymbols.py from Linux 7.0-rc1 (unchanged since v6.2).
This tool allows to identify the usage of symbols that are not defined
in Kconfig.
Suggested-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Quentin Schulz <quentin.schulz@cherry.de>