QuickSettings: Refresh RSSI tile on tap

When tapping the RSSI tile to disable mobile data, the indicator
would not show immediately because the view is not updated until
the next signal refresh.  Refreshing on tap makes more since so
that the user sees instant feedback.

Change-Id: I70d3e08e9a4af4f5d764d8c90cbaf944f4f25139
Signed-off-by: Evan Anderson <evan@thelinuxman.us>
Merge remote-tracking branch 'pa_upstream/kitkat' into legacy
Allow subclasses to override bindPreferences().

Allows them to modify adapter behaviour.

Change-Id: I6767e3988740b674fbdf40a903cd2ef3949ca7db
Merge branch 'kitkat' into XPerience