[Server manager , Fix dynamic discovery]
Closes-Bug : #1395432

Testing:
1) See if dynamic server are discovered.
2) Delettion of server discovered dynamically with mac address.
3) Re-image and provision of server.

Change-Id: I344ffc0e7ee0d5efb35c88ba7afbbde2d5d7a6f1
Merge "[Server manager , Fix dynamic discovery] Closes-Bug : #1395432"