Handling exeception in restore repo for vrouter gateway setup
Handling exeception in restore repo for vrouter gateway setup

fab restore_repo was getting key error exception for vcenter gateway
setup.Handled that exception.

closes-bug: #1704760

Change-Id: Ib940ed3d7ac04f87d82c32453a4c07e652aa4235
(cherry picked from commit 3153a3071df8dc6972e2b0cfaa38dc44e923e4d6)

Juniper/contrail-fabric-utils,Juniper/contrail-fabric-utils