ci.jpl: Store per-config artifacts in just cfgs/ subdir

Instead of tf-m-ci-scripts/lava_artifacts/. "tf-m-ci-scripts" is clearly
supefluous and just an artifact of initial implementation. "lava_artifacts"
is also longer than really necessary, and misleading, because not all
artifacys are LAVA-related, e.g. code coverage reports (they are produced
based on the artifacts got from LAVA, but they're actually just generic
per-config artifacts).

Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
Change-Id: Idec984b2692551e1cd5b0a29a23eec075bd7101b
1 file changed