Karaf odl-nsf-managers feature fails due to missing topologymanager shell. Fixing that.

Change-Id: I5dca10c904235c10efd60626a6ab6c8cd57db62c
Signed-off-by: Madhu Venugopal <mavenugo@gmail.com>
Merge "Karaf odl-nsf-managers feature fails due to missing topologymanager shell. Fixing that."