autotest: Rename wifi test control files and NAME fields uniquely

TEST=These tests run/pass with test_that.
BUG=chromium:250975

Change-Id: I652bff455ee9e5ef186005405658d3255dd611c6
Reviewed-on: https://gerrit.chromium.org/gerrit/58910
Commit-Queue: Christopher Wiley <wiley@chromium.org>
Reviewed-by: Christopher Wiley <wiley@chromium.org>
Tested-by: Christopher Wiley <wiley@chromium.org>
21 files changed