This fixes issues caused by e22a2a7395.
That commit tried to consolidate the selection of the endpoint based on branch name
in a single shared location. But due to the order that azure pipelines evaluates
things, the endpoints were being authenticated before the stage variables
were evaluated.
From azure docs:
"Resources are authorized before a stage can start running,
so stage- and job-level variables aren't available. Pipeline-level
variables can be used, but only those variables explicitly included in the pipeline."
This commit adds Pipeline support for building uhd toolchain docker
images. The Dockerfiles specify the required dependencies to build uhd.
These can then be used in downstream pipelines to build uhd. It's also
possible to use the Dockerfiles using "docker build" and "docker run"
to locally create the toolchain to build uhd.
Signed-off-by: Steven Koo <steven.koo@ni.com>
