This patch adds a new config option 'use_dvs_features'
that will allow to expose some dvs features like
network resource pool, promiscuous mode, traffic marking etc.
The value of 'use_dvs_features' is boolean i.e true/false.
The dvs features can be configured by managing the dvs backing
NSX-v directly.
Co-Authored-by: Giridhar Jayavelu <gjayavelu@vmware.com>
Change-Id: Ic333790c0a12db7a20995e722809257a884da664