Add pydot-ng to requirements-rpm
Add pydot-ng to requirements-rpm

Related-Bug: #1427109
Change-Id: I706e18815f35904bf1f148edba818d281f2005b0
Implements: blueprint granular-deployment-based-on-tasks

SergK/fuel-main,teselkin/fuel-main,SmartInfrastructures/fuel-main-dev,huntxu/fuel-main,zhaochao/fuel-main,SmartInfrastructures/fuel-main-dev,stackforge/fuel-main,dancn/fuel-main-dev,ddepaoli3/fuel-main-dev,teselkin/fuel-main,eayunstack/fuel-main,AnselZhangGit/fuel-main,ddepaoli3/fuel-main-dev,teselkin/fuel-main,zhaochao/fuel-main,huntxu/fuel-main,huntxu/fuel-main,ddepaoli3/fuel-main-dev,AnselZhangGit/fuel-main,dancn/fuel-main-dev,dancn/fuel-main-dev,stackforge/fuel-main,teselkin/fuel-main,zhaochao/fuel-main,AnselZhangGit/fuel-main,Fiware/ops.Fuel-main-dev,SergK/fuel-main,AnselZhangGit/fuel-main,Fiware/ops.Fuel-main-dev,zhaochao/fuel-main,SmartInfrastructures/fuel-main-dev,eayunstack/fuel-main,SergK/fuel-main,dancn/fuel-main-dev,Fiware/ops.Fuel-main-dev,SmartInfrastructures/fuel-main-dev,ddepaoli3/fuel-main-dev,stackforge/fuel-main,zhaochao/fuel-main,eayunstack/fuel-main,Fiware/ops.Fuel-main-dev