FROMLIST: ARM: Register with kernel restart handler

By making use of the kernel restart handler, board specific restart
handlers can be prioritized amongst available mechanisms for a particular
board or system.

Select the default priority of 128 to indicate that the restart callback
in the machine description is the default restart mechanism.

Bug: 146512338
Change-Id: I9253eab4b521d8b39196909cb0780aa0aaa041db
Link: https://lore.kernel.org/patchwork/patch/1139629/


Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Thierry Reding <treding@nvidia.com>