LPAR agent may dump core when all configured VIOS are down

When using Virtual Input Output Servers (VIOS), the LPARs need a restart after VIOS restart/reboot/crash. If management LPAR is not restarted after VIOS is rebooted, then LPAR agent may dump core.

Workaround: Restart the management LPAR which was depended on the rebooted VIOS.