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: I5ae0c532c92b2c05a91f0d769ca6744002747fca
(cherry picked from commit b06766f1)