Fix delete of nuage dhcp option
Fix delete of nuage dhcp option

Added ip_version to the nuage dhcp option resource init on
deletion of nuage dhcp option.

Change-Id: Ic8abd7abb6deb2f24d283719e4f37a35980037d9
Depends-On: I1cdf285a3c040343f14988c1be52767389ec5a84
Closes-Bug: OPENSTACK-2682

nuagenetworks/nuage-openstack-neutron,nuagenetworks/nuage-openstack-neutron