With neutron switching OVSDB configuration to be done via the 'native'
library, OVSDB needs to be listening on a port to accept RPCs. This
adds a default listener on a non-common port and sets the URI for
Neutron when using OpenDaylight so that agents may add ports to OVS.
Change-Id: Ic651bc9d28f45491846b6ad1048fbc975b3e2141
Signed-off-by: Tim Rozet <trozet@redhat.com>