Closes-Bug:#1399143 - Baremetal : when change virtual network while editing logical interface should delete previous port and virtual machines

Change-Id: I5ab1d50aabf7226a22a7572a7fd4526f224899e0
Merge "Closes-Bug:#1399143 - Baremetal : when change virtual network while editing logical interface should delete previous port and virtual machines" into R2.0