RDS/IB: Tune failover-on-reboot scheduling

RDS/IB: Tune failover-on-reboot scheduling

In certain platforms (e.g. X5-2) the IB devices are slow
to come up and the start of failover-on-reboot (in RDS active
bonding) is changed to accomodate them. Otherwise all
interfaces get de-activated and then re-activated on
almost every reboot.

We also make sure when all interfaces do get de-activated
by failover-on-reboot, it is not affected by delayed startup
of devices from all-ports-down which is present for other
situations.

The startup interval of first scheduling of failover-on-reboot
on module load is also turned into a module parameter.

Orabug: 20063740

Signed-off-by: Mukesh Kacker <mukesh.kacker@oracle.com>
Acked-by: Ajaykumar Hotchandani <ajaykumar.hotchandani@oracle.com>