Enforce log hints
Enforce log hints

This change enforces log hints use and removes debug level log
translation, modifications are validated through a hacking rule
and the change respects logging guidelines.

Change-Id: Ia4e6659b8b59732d88cd603b0e6c630fad37aae5
Closes-bug: #1320867

stackforge/networking-bigswitch,wolverineav/networking-bigswitch,stackforge/networking-bigswitch,openstack/networking-bigswitch,wolverineav/networking-bigswitch,openstack/networking-bigswitch