Fix some typos in the explanatory notes
Fix some typos in the explanatory notes

This patch changes 'defiend' to 'defined'
in the explanatory notes in octavia/
tests/functional/db/test_repositories.py

Change-Id: Ibb7f0f416a013b98edf72a5803aada71015cfade

openstack/octavia,openstack/octavia,openstack/octavia