Bluetooth: GAP: don't update autoconnect on bonding state

This patch fixes regression caused by commit
I37e8d92feef3c2d4d18c014a5d9092a9469335cb where it was not possible
to autoconnect supported profiles of remote device from DUT after
pairing is completed.

Change-Id: Ied8e0dcfd1f6b9c98a89929f05257957c13a95fe
CRs-Fixed: 584889
Bluetooth: Destroy BT Dialog on BT power off.

Check for Bluetooth off Broadcast to destroy disconnect
dialog when Bluetooth is turned off from power widget.

Change-Id: Ie556a17c7d574f77da5181c08705648ebf5733cc
CRs-Fixed: 579028
Reorganize and clean up lock screen section

- Move the option for enabling widgets to the top of the widgets header,
  as it is 1) the most important option in that section and 2) most
  likely what the user's going to be looking for first.

- Use a simple "custom widgets" title for enabling widgets instead
  of the verbose "widget pager" term.

- Shorten and simplify overly long, hard to parse space-hogging
  summaries.

- Move "slider shortcuts" out of the widgets section.

Change-Id: Iac1b55a6b976c5645ca7f46e7fdf0821396e1100