The patch goes to one of ovn-dbs nodes and runs a SQL query to change
all vxlan networks to Geneve. It's done via Python and sqlalchemy in
neutron_api container because mysql client is not installed there. This
approach was chosen to avoid installing more dependencies.
Change-Id: Ic417a115fdc212527866122bc9d3c93ea9599bdf
Signed-off-by: Jakub Libosvar <libosvar@redhat.com>