This patch is removing chrony package
from docker host when containerized chrony is enabled.
It is also fixing issue with chrony container running
under Ubuntu docker host as noted below.

+ exec /usr/sbin/chronyd -d -f /etc/chrony/chrony.conf
2020-06-08T08:19:09Z chronyd version 3.4 starting (+CMDMON +NTP +REFCLOCK +RTC +PRIVDROP +SCFILTER +SIGND +ASYNCDNS +SECHASH +IPV6 -DEBUG)
2020-06-08T08:19:09Z Fatal error : Could not open configuration file /etc/chrony/chrony.conf : Permission denied

Added also removal apparmor profile for ubuntu when
containerized chrony is enabled, as chrony's package
is not removing apparmor profile, and therefore
containerized chrony is not working.

Change-Id: Icf3bbae38b9f5630b69d5c8cf6a8bee11786a836
Closes-Bug: #1882513