Bug Fix - 2305: Automated scaling of Vnf is not happening through metrics...

Bug Fix - 2305: Automated scaling of Vnf is not happening through metrics collected by feature Service KPI of VNF using exporter endpoint

Change-Id: I975f5bfe0e23f44d25ba30b29f5f19df463054f2
Signed-off-by: Rahul Kumar <rahul.k4@tataelxsi.co.in>
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>