Infra Health: Decouple from other TF-M jobs

Infra-health needs a stable version of TF-M to make sure
the infrastructure works well.

Other CI jobs need to use the latest HEAD on master of TF-M for
verification.

So Infra-Health job needs to be decoupled from other TF-M jobs.

This decouple is forked from
709c1546b4ebf1d63cfbd4eaddb5d19443c920b0
in tf-m-ci-scripts.

Change-Id: If005dc3d0b19d9b58ac4e471f687e72419eb3b92
Signed-off-by: Xinyu Zhang <xinyu.zhang@arm.com>
2 files changed