* ECMP flag for a path may be reset due to instance-ip deletion.
  Delete such path from ecmp peer path.
* Test case for same.
Closes-Bug: #1349526

Change-Id: Iee92064b93a0b7248c9cd4fe6faaf035398bf323
Merge "* ECMP flag for a path may be reset due to instance-ip deletion.   Delete such path from ecmp peer path. * Test case for same. Closes-Bug: #1349526"