Don't translate debug level logs in cloudpipe, hacking, ipv6, keymgr

Our translation policy
(https://wiki.openstack.org/wiki/LoggingStandards#Log_Translation) calls
for not translating debug level logs. This is to help prioritize log
translation. Furthermore translation has a performance overhead, even if
the log isn't used (since nova doesn't support lazy translation yet).

Change-Id: Icdae100d5a506fdaa56fd124dc9860cdfddbe288
Merge "Don't translate debug level logs in cloudpipe, hacking, ipv6, keymgr"