More stict naming of OVS packages in L23network

Fix the lost dependency between openvswitch packages.
Remove unneeded 'if' statement for MLNX.

Closes-bug: #1347671
Related to: blueprint neutron-nsx-plugin-integration

Change-Id: I0bceb2d9c81e378c16d5416a5125bb67bf81fae5
Merge "More stict naming of OVS packages in L23network"