tests: cleanup m5out directly in weekly

The weekly test script was implicitly assuming that no m5out
directory existed in the folder where the script was run.
However, if a prior test ran and failed, it would not clean up
its m5out directory, causing the weekly tests to fail.

This commit resolves this by removing the m5out directory before
trying to run any tests in the weekly script.  Moreover, we also
update the weekly script to explicitly remove this m5out directory
at the end of the script.

Change-Id: If10c59034528e171cc2c5dacb928b3a81d6b8c50
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/67198
Reviewed-by: Bobby Bruce <bbruce@ucdavis.edu>
Maintainer: Bobby Bruce <bbruce@ucdavis.edu>
Tested-by: kokoro <noreply+kokoro@google.com>
1 file changed