Merging fix for CES-401 from mesa-1.6.1 into roxy [1/1]

This pull request merges the fix for CES-401 (Quantum networking not recovering from compute node reboot)
from mesa-1.6.1 into roxy.


 .../quantum/files/default/quantum-ovs-cleanup      |   20 ++++++++++++++++
 chef/cookbooks/quantum/recipes/common_install.rb   |   25 ++++++++++++++++++++
 2 files changed, 45 insertions(+)

Crowbar-Pull-ID: a27319e68200c19ebd1dfa30be5268151359ba66

Crowbar-Release: roxy