When creating the OVS manager, define the command timeout
(CONF.OVS.ovsdb_timeout) and inactivity probe time
(CONF.OVS.of_inactivity_probe)
NOTE: CONF.OVS.of_inactivity_probe is defined in seconds but the
parameter should be passed to ovs-vsctl in milliseconds [1].
[1]http://www.openvswitch.org/support/dist-docs/ovs-vswitchd.conf.db.5.txt
Depends-On: https://review.opendev.org/#/c/720785
Change-Id: I8ed1fc85c2f78710bf6589ba3deca518471339b8
Closes-Bug: #1868686