Create of L3 Router fails when the network was having _ in the name.
- Issue was doing split with "_" was having a issue fixed it.

Change-Id: Iaac6438490e049f785ad4c6776f1aed7b9f68349
Partial-Bug: #1400591
Merge "Create of L3 Router fails when the network was having _ in the name. - Issue was doing split with "_" was having a issue fixed it." into R2.0