Closes-Bug : #1394467 - Baremetal : Need to create Subnet and set Virtual Machine Interface reference to it while creating Logical interface of type L3

Change-Id: If01fd07b26226b4bb65d32503d6a391c48b740f9
Merge "Closes-Bug : #1394467 - Baremetal : Need to create Subnet and set Virtual Machine Interface reference to it while creating Logical interface of type L3"