lbaas: Fix incorrect url path
lbaas: Fix incorrect url path

When calling sendjson(), make sure to pass the full URL and not just the
object type.

Change-Id: Icdc944531bb774922f30f670c28b6ad3ce11885a
Signed-off-by: Kyle Mestery <9cfbda34e625c7b0454bcb19a48d07c46f9097d2@mestery.com>

flavio-fernandes/networking-odl,flavio-fernandes/networking-odl,CiscoSystems/networking-odl,schoksey/networking-odl,FedericoRessi/networking-odl,CiscoSystems/networking-odl,openstack/networking-odl,openstack/networking-odl,FedericoRessi/networking-odl,openstack/networking-odl,schoksey/networking-odl