Merge "Merge multiple constants defining linux interface maximum length"

diff --cc neutron/agent/linux/ip_lib.py
Simple merge

diff --cc neutron/agent/linux/utils.py
Simple merge

diff --cc neutron/plugins/common/constants.py
Simple merge

diff --cc neutron/plugins/openvswitch/agent/ovs_neutron_agent.py
Simple merge

diff --cc neutron/tests/unit/openvswitch/test_ovs_neutron_agent.py
Simple merge