watchdog: max77620: update Luca Ceresoli's e-mail address

My Bootlin address is preferred from now on.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
https://lore.kernel.org/r20220603155727.1232061-6-luca@lucaceresoli.net


Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>