Merge changes I73f0fb18,Ia5640c02,I51550c1b,I51da3a2c,I9139c5e6

* changes:
  Use correct address type based on address policy
  Rename LeAddressManager#GetCurrentAddress()
  Add support for NRPAs in advertisement sets
  Add RotatingAddress() method to le_address_manager
  Use dedicated enum for Advertiser Address Type