autotest: add some networking tests to BVT

These autotests have been running as part of network_nightly, and
have had no failures in the past two weeks. Add them to BVT, so
that they can detect regressions quickly.

BUG=chromium:320709
TEST=Ran suite_enumerator.py, saw modified tests as listed for bvt

Change-Id: I5734328eab0e3ee266f40df317291caa7a56ea48
Reviewed-on: https://chromium-review.googlesource.com/177138
Tested-by: mukesh agrawal <quiche@chromium.org>
Reviewed-by: Paul Stewart <pstew@chromium.org>
Commit-Queue: mukesh agrawal <quiche@chromium.org>
13 files changed