Adds tests create/update port with multiple attributes

* Adds test for creating port with multiple ip addresses
* Adds test for create/update port with multiple attributes
  (name, sec_grp, admin_state_up, fixed_ips)

Co-Authored-By: Neeti Dahiya <ndahiya@redhat.com>
Co-Authored-By: Rohan Kanade <rkanade@redhat.com>

Closes-Bug: #1396639
Change-Id: I516ebab3ba16ea6b746bc6f40f33c67542afc445
1 file changed