In Iffb1b6bb6724c5e9e3310338f88ce3624e32fe21 the ability was added to
specify a different OVN NB and SB connection string but if you wanted to
use the defaults the chart would fail without an ovn section in
ml2_conf.ini.
Change-Id: Icd463ed2898a12807480150bf6733f1662cb360d
Signed-off-by: Doug Goldstein <cardoe@cardoe.com>