Add a new structure for indirect AGE update.
This new structure enables:
1. Update timeout value.
2. Stop AGE checking.
3. Start AGE checking.
4. restart AGE checking.
Signed-off-by: Michael Baum <michaelba@nvidia.com>
Acked-by: Ori Kam <orika@nvidia.com>
Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>