Docker container support for rsyslog

Since we're going to run "rsyslogd" for remote logging in a
container, we don't need "rsyslogd" to configure TCP/UDP listeners
on a host system.

blueprint fuel-containerization-of-services

Change-Id: I22a3ab9092a5ff3dedb6cd000f1d323e14e8f2b9
Merge "Docker container support for rsyslog"