Merge changes I738f2a13,Id0f99289,Iefd5b0c7,I61013efd,I6f8b8ae8, ...

* changes:
  acl_disconnect_after_role_switch:Check for valid acl
  enum-ify stack/gatt/gatt_int::GATT_CH_STATE
  Catch and release ignored btif gatt events
  Remove unused #def stack/include/gatt_api::GATT_CONN_FAIL_ESTABLISH
  Add LOG_DUMPSYS[_TITLE]
  gd: Add acl manager dumpsys data
  Introduce btm circular buffer history
  Add hci error code ROLE_SWITCH_FAILED
  Flush out BtaIdSysText
  Remove unused #include
  Proper const API for stack/include/bt_type::bd_features_text
  Add stack/l2cap/l2c_int::link_state_text
  Expose shim acl remote address accessors
  Re-log stack/l2cap/l2c_api::L2CA_RegisterLECoc
  Re-log stack/l2cap/l2c_api::L2CA_Register