Fix security mismatch failures

Sometimes it just takes longer for security to
show up in scan. So do a re-scan if the first
reported a mismatch.

BUG=chromium:376535
TEST=Chaos WPA2

Change-Id: I9b5e68cb5863306d0c3d397724236c4d2b4cf721
Reviewed-on: https://chromium-review.googlesource.com/201440
Reviewed-by: Kris Rambish <krisr@chromium.org>
Commit-Queue: Bindu Mahadev <bmahadev@chromium.org>
Tested-by: Bindu Mahadev <bmahadev@chromium.org>
1 file changed