ext: Add post_test_procedure to testlib runner

This procedure is trigger after a test has finished and before
the tearing down process kicks in.

Change-Id: I58ce10814fbc80d96f2f72565491b18de0ec290a
Signed-off-by: Hoa Nguyen <hoanguyen@ucdavis.edu>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/33997
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
2 files changed