mech_driver.OVNMechanismDriver "_ovn_client" is a read-only property
mech_driver.OVNMechanismDriver "_ovn_client" is a read-only property

mech_driver.OVNMechanismDriver "_ovn_client" is not a class member but
a read-only property and can't be assigned.

Change-Id: I6fdd9d929e75a6092e0a874b8ffcf283c64b076a
Closes-Bug: #1869342

openstack/neutron,mahak/neutron,mahak/neutron,openstack/neutron,openstack/neutron,mahak/neutron