[AOS] Add RHEL7 RPM spec file and RHEL7 Dockerfile

Specfile updates to build with generated tarball

Merge upstream commits

Get updates from upstream, add Dockerfile.openshift for Origin builds

ADd a RHEL7 dockerfile and standardize format

… config

This PR is autogenerated by the [ocp-build-data-enforcer][1].
It updates the baseimages in the Dockerfile used for promotion in order to ensure it
matches the configuration in the [ocp-build-data repository][2] used
for producing release artifacts.

If you believe the content of this PR is incorrect, please contact the dptp team in
#forum-testplatform.

[1]: https://github.com/openshift/ci-tools/tree/master/cmd/ocp-build-data-enforcer
[2]: https://github.com/openshift/ocp-build-data/tree/openshift-4.6-rhel-8/images

…ft.rhel7-baseimages-to-mach-ocp-build-data-config

Bug 1872080: Updating Dockerfile.openshift.rhel7 baseimages to mach ocp-build-data config

… config

This PR is autogenerated by the [ocp-build-data-enforcer][1].
It updates the base images in the Dockerfile used for promotion in order to ensure it
matches the configuration in the [ocp-build-data repository][2] used
for producing release artifacts.

Instead of merging this PR you can also create an alternate PR that includes the changes found here.

If you believe the content of this PR is incorrect, please contact the dptp team in
#aos-art.

[1]: https://github.com/openshift/ci-tools/tree/master/cmd/ocp-build-data-enforcer
[2]: https://github.com/openshift/ocp-build-data/tree/openshift-4.6/images

…ft.rhel7-baseimages-to-mach-ocp-build-data-config

Bug 1878163: Updating Dockerfile.openshift.rhel7 baseimages to mach ocp-build-data config