am 35550a10: Merge changes from topic \'system-bt\'

* commit '35550a1030879bd3cb74f10f0cadb6e6f660bffb':
  L2CAP and SDP Search API for BT profiles (1/2)
  Incorrect RSSI value in onlost/onfound
  OnFound/OnLost feature API changes based on spec v0.90