[ENTMQBR-4612] Productization of 7.8.1.CON.2.GA

This is to add 7.8.1 support on Power & Z with OpenJDK 11 + openj9 on ubi 8 base image. https://issues.redhat.com/browse/ENTMQBR-4612

Signed-off-by: Rafiur Rashid rrashid@redhat.com

[X] Pull Request title is properly formatted: [CLOUD-XYA] Subject
[X] Pull Request contains link to the JIRA issue
[X] Pull Request contains description of the issue
[X] Pull Request does not include fixes for issues other than the main ticket
[X] Attached commits represent units of work and are properly formatted
[X] You have read and agreed to the Developer Certificate of Origin (DCO) (see CONTRIBUTING.md)
[X] Every commit contains Signed-off-by: Your Name <yourname@example.com> - use git commit -s

jboss-container-images / jboss-amq-7-broker-openshift-image