autotest: Move SGI test to wifi_flaky

Apparently we don't even have hardware to run this test.  Put it in a
suite somewhere so that we don't lose track of it, but stop looking at
it as if we expected it to pass.

TEST=None
BUG=chromium:263197

Change-Id: I085fe936af82f0247d2a22e6e22c42433f664642
Reviewed-on: https://gerrit.chromium.org/gerrit/62928
Tested-by: Christopher Wiley <wiley@chromium.org>
Reviewed-by: Paul Stewart <pstew@chromium.org>
Commit-Queue: Christopher Wiley <wiley@chromium.org>
1 file changed