[autotest] Set up a place in the config for a wireless configuration

However, this seems like the sort of thing that should actually be held
in the shadow config.

BUG=chromium:305055
TEST=None

Change-Id: Ibf913ecddb0712f23bfc48afbc1f08389deacf94
Reviewed-on: https://chromium-review.googlesource.com/181762
Tested-by: Alex Miller <milleral@chromium.org>
Reviewed-by: Derek Basehore <dbasehore@chromium.org>
Reviewed-by: Dan Shi <dshi@chromium.org>
Commit-Queue: Alex Miller <milleral@chromium.org>
1 file changed