Rename Neutron ovs agent log name for IceHouse

Closes-bug: #1312256

Change-Id: Idc688a42da1a5b997e17bbe960f273ec650cbe76
Signed-off-by: Bogdan Dobrelya <bdobrelia@mirantis.com>
Merge "Rename Neutron ovs agent log name for IceHouse"