Merge changes I14572835,Ib445933a,I842b69db,I2b8eeb2c,Iaf263d45, ...

* changes:
  Re-include include/hardware/bt_sock
  Re-include btif/include/btif_av
  Re-include btif/include/btif_a2dp_source
  Re-include btif/include/btif_a2dp_sink
  Re-include bta/sdp/bta_sdp_int
  Re-include bta/pb/bta_pbs_int
  Re-include bta/pan/bta_pan_int
  Re-include bta/jv/bta_jv_int
  Re-include bta/include/utl
  Re-include bta/include/bta_sdp_api
  Re-include bta/include/bta_pan_co
  Re-include bta/include/bta_pan_ci
  Re-include bta/include/bta_pan_api
  Re-include bta/include/bta_op_api
  Re-include bta/include/bta_jv_co
  Re-include bta/include/bta_jv_api
  Re-include bta/include/bta_hh_co
  Re-include bta/include/bta_hh_api
  Re-include bta/include/bta_hf_client_api
  Re-include bta/include/bta_hearing_aid_api
  Re-include bta/include/bta_hd_api
  Re-include bta/include/bta_gatts_co
  Re-include bta/include/bta_gatt_queue
  Re-include bta/include/bta_gatt_api
  Re-include bta/include/bta_dm_co
  Re-include bta/include/bta_dm_ci
  Re-include bta/include/bta_dm_api
  Re-include bta/include/bta_av_co
  Re-include bta/include/bta_av_ci
  Re-include bta/include/bta_av_api
  Re-include bta/include/bta_ar_api
  Re-include bta/include/bta_api
  Re-include bta/include/bta_ag_api
  Re-include bta/hh/bta_hh_int
  Re-include bta/hf_client/bta_hf_client_at
  Re-include bta/hd/bta_hd_int
  Re-include bta/gatt/bta_gatts_int
  Re-include bta/gatt/bta_gattc_int
  Re-include bta/dm/bta_dm_int
  Re-include bta/av/bta_av_int
  Re-include bta/ar/bta_ar_int
  Re-include bta/ag/bta_ag_int
  Properly include bta/ag/bta_ag_at::size_t
  Properly include bta/gatt/database_builder
  Properly include various compilation units