Update openvswitch dockerfile for formatting
Update openvswitch dockerfile for formatting

Change-Id: Ia9c8a4d4a24f3a80652b950924917091ba7d16fe
Partial-Bug:#1569417

openstack/kolla,stackforge/kolla,nihilifer/kolla,mandre/kolla,rahulunair/kolla,coolsvap/kolla,GalenMa/kolla,stackforge/kolla,stackforge/kolla,mrangana/kolla,nihilifer/kolla,tonyli71/kolla,GalenMa/kolla,dardelean/kolla-ansible,tonyli71/kolla,rahulunair/kolla,mandre/kolla,intel-onp/kolla,mandre/kolla,dardelean/kolla-ansible,mrangana/kolla,intel-onp/kolla,coolsvap/kolla,coolsvap/kolla,openstack/kolla,dardelean/kolla-ansible