watchdog: bcm47xx_wdt.c: add restart handler support

Just like in case of other watchdog drivers, use the new kernel core
API to provide restart support.

Signed-off-by: Rafał Miłecki <[email protected]>
Reviewed-by: Guenter Roeck <[email protected]>
Signed-off-by: Wim Van Sebroeck <[email protected]>
2 files changed