Revert "Revert "Add "security_group_ids" to Port's query parameters""

This reverts commit 5e969fb49d.

Reason for revert: The revert happened to resolve a merge conflict and was supposed to be re-reverted afterwards. This is the re-revert.

Original Commit message for original change Ic557dc3bf97a193fd28c13792302fb8396e29df1:

Neutron's port-security-groups-filtering extension allows to filter
ports by security-group(s). This feature was added with [1].

We keep the name like in the attribute "security_group_ids" instead of
"security_groups" to stay consistent within the Port model.

[1] https://launchpad.net/neutron/+bug/1405057

Change-Id: I060edb9c0d2eeb03d514707b69978f3d5f0ae3f4

openstack/network/v2/port.py

@@ -35,6 +35,7 @@ class Port(_base.NetworkResource, tag.TagMixin):
         'subnet_id', 'project_id',
         is_admin_state_up='admin_state_up',
         is_port_security_enabled='port_security_enabled',
+        security_group_ids='security_groups',
         **tag.TagMixin._tag_query_parameters
     )
 

openstack/tests/unit/network/v2/test_port.py

@@ -99,6 +99,7 @@ class TestPort(base.TestCase):
                               "is_port_security_enabled":
                                   "port_security_enabled",
                               "project_id": "project_id",
+                              "security_group_ids": "security_groups",
                               "limit": "limit",
                               "marker": "marker",
                               "any_tags": "tags-any",