autotest: wifi: Set WiFi Address for local servers

If we are in a "local server" configuration, the IP address of the
server on the WiFi is determined by the server itself, not by
external configuration.  Test for this configuration.

BUG=chromium-os:25908
TEST=network_WiFiMatFunc/060Perf24HT20

Change-Id: I986571f398673e8166eca67651eec6e02b226217
Reviewed-on: https://gerrit.chromium.org/gerrit/38494
Reviewed-by: mukesh agrawal <quiche@chromium.org>
Commit-Ready: Paul Stewart <pstew@chromium.org>
Tested-by: Paul Stewart <pstew@chromium.org>
2 files changed