Correct the usage on listing neutron ports

The test case uses 'fixed_ip' as a query parameter, but the usage
is not correct. In before, the test passed because neutron
server ignored this parameter, and returned all the
ports, which happened to make the test pass.

This patch fixes the usage of this parameter. If there is no ip_address
then not to filter the list using the filter. Otherwise,
we use 'fixed_ips' parameter and populate its value correctly.

Related-Prod: PRODX-0000

Change-Id: I1189bc9a50308df5c7e18c329f3a1262c90b9e12
(cherry picked from commit 95a3169e1782f31c794e56cb836c1d9476a0adf8)
(cherry picked from commit 7bb90e56ff4b461b48d96c1a2a53f60a76171cb7)
1 file changed