autotest: Migrate network_WiFiSecMat/000StaticKeyWEP40 to new framework

TEST=This passes, the hostapd configuration indicates WEP encryption is
being used.
BUG=chromium:245810

Change-Id: I91bb6044fda04a6a6d3eae8a0e5c273fd43faa9f
Reviewed-on: https://gerrit.chromium.org/gerrit/58423
Tested-by: Christopher Wiley <wiley@chromium.org>
Reviewed-by: Paul Stewart <pstew@chromium.org>
Commit-Queue: Christopher Wiley <wiley@chromium.org>
2 files changed