Don't update interfaces in db if there are no interfaces with ip which belongs to admin subnet.
* update_interfaces_info use node object instead of id
* fix fixtures sample_environment.json add ip for interfaces
* check interfaces before update
* fix ui test

Change-Id: If282d1f2e8c07e0d821915d38cef02f8856177e5
Merge "Don't update interfaces in db if there are no interfaces with ip which belongs to admin subnet. * update_interfaces_info use node object instead of id * fix fixtures sample_environment.json add ip for interfaces * check interfaces before update * fix ui test"