mei: bus: constify the struct mei_cl_bus_type usage

Now that the driver core can properly handle constant struct bus_type,
move the mei_cl_bus_type variable to be a constant structure as well,
placing it into read-only memory which can not be modified at runtime.

Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20240423024133.1890455-1-chentao@kylinos.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
1 file changed