Why I did it
tag sonic-slave-* image with branch.
Only keep sonic-slave-* latest tag when it is master branch and amd64 arch.
How I did it
How to verify it
Why I did it
docker hub will limit the pull rate.
Use ACR instead to pull debian related docker image.
How I did it
Set DEFAULT_CONTAINER_REGISTRY in pipeline.
Why I did it
Fix ENABLE_DOCKER_BASE_PULL not working issue in armhf/arm64
For build in native armhf/arm64, the expected container registry repo name is sonic-slave-<stretch|buster|bullseye>
How I did it
Publish the slave image to sonic-slave-<stretch|buster|bullseye>.
