Bring back the deleted ONU by "disabling and enabling the OLT"

After a POD has been brought up with a successful EAPOL/DHCP and pings working on the ONUs.

Automation of the following scenario 

• Disable and delete the ONUo   ONU is deleted successfully

o   ONU entry is removed from the device list

o   EAPOL flows are also removed

To bring back the removed ONU.

• Disable and enable the OLT  (don’t delete and recreate the OLT)
• OLT is enabled back and it is able to discover the ONU also (ONU entry is there in the device list).
• ONU Admin state is enabled but OPERSTATUS Active and connect status is reachable
• EAPOL flows are added back