tests: Add "tests/gem5/se_mode" directory for SE tests

At present only the "test_hello_se.py" tests are run, but this directory
will serve as a directory for other SE tests going forward.

Change-Id: I814d1e673df0195960d3af69277db8d397f299e5
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/62012
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
1 file changed