Fix not updating error message when authentication fails

If attempt to configure the first network fails, AccessPoints fails to
update error message because it only checks the error code if it is not
active.

With this change, user may see saved network message for a second
because SupplicantStateTracker retries on authentication failure so
intermediate status is displayed between each trial.

Bug: 8284024
Change-Id: I8b976b03878e27e46726ee8a176f131115b7a409
Fix the message when Bluetooth is turning off while on the tethering menu.

Currently says "Turning Wifi off..."
This change will display "Turning Bluetooth off..." instead.

Change-Id: I697d19ca4d7a69cc6b3729ad09fcf38bf5ab2427
Signed-off-by: Ryan Baxter <rbryanbaxter@gmail.com>