Added networking-plumgrid in plugin requirements
Added networking-plumgrid in plugin requirements


Closes-Bug: 1463665
Change-Id: I7152dedd83659ee51274be31ef305af9e82d695a
(cherry picked from commit e33d92c894df4664d01d040ba4305c7cb4ef6e27)

alexandrucoman/vbox-neutron-agent,alexandrucoman/vbox-neutron-agent