Merge changes I72e0b382,I674beac1,Ia01fa4c0,Ibcc44694,I5602c516, ... into tm-dev

* changes:
  GD: Create remote address with correct type
  LeAclManagerTest: Disable flaky test_multiple_background_connections
  GD: Set non resolvable random address
  LeAclManagerFacade: Check per_connection_events
  GD: Check address types in le_acl_manager_test
  Cert: Add IRK to LeAclManagerFacade
  LeAclManagerFacade: Allow multiple connections
  GD Cert Test: Direct le connection
  Test: Factor out cert address
  Test: Add is_direct to LeCreateConnection
  LeAclManagerTest: Use PyHci abstractions