Fix port creation verification of the port-security extension

Fix port creation verification of the port-security extension

When port is created, we should check the content of the security-group and
address-pairs like we do when port updated.
This patch also updates address-pairs testing unskipping some
port-security-related tests.

Change-Id: Ia27881a34ff99cad34c84764d2bf8a6cdf77af9c
Closes-Bug: #1446087