DO NOT MERGE Add Bluetooth toggle prompts - settings

If permission review is enabled toggling bluetoth on or off
results in a user prompt to collect consent. This applies
only to legacy apps, i.e. ones that don't support runtime
permissions as they target SDK 22.

bug:28715749
Change-Id: I0b9065446f9d0cfb819065eaf2dc160eb1c1f7ec