Use enable-restore-nfs-broker in bbr deploy
Use enable-restore-nfs-broker in bbr deploy

... as we noticed a discrepancy between our config and the suggested
config from the volume services team and persi pipeline

[#169546948](https://www.pivotaltracker.com/story/show/169546948)

Co-authored-by: Dave Walter <00834c187f77910918b70534e2fb1dd066a04d4b@pivotal.io>
Co-authored-by: John Ryan <4320e61cfb1cc2ab118eee66eafebfe48d541780@pivotal.io>

cloudfoundry/cf-deployment,cloudfoundry/cf-deployment