Merge changes I2f2c69a4,I41a65c6c,I101aa769,I87d34f49,Ifb5e07f6, ...

* changes:
  Remove unnecessary declarations stack/btm/btm_sco
  Locally link and remove unused funcs stack/btm/btm_sco
  Re-log stack/btm/btm_ble_gap::btm_ble_update_inq_result
  Remove duplicate decls stack/btm/btm_int
  Locally link and remove unused funcs stack/btm/btm_inq
  Remove decl stack/btm/btm_int
  Locally link and remove unused funcs stack/btm/btm_devctl
  Locally link and remove unused funcs stack/btm/btm_ble_cont_energy
  Locally link and remove unused funcs stack/btm/btm_ble_adv_filter
  Locally link and remove unused funcs stack/btm/btm_ble_addr
  Remove unnecessary declarations stack/btm/btm_ble_int
  Remove duplicate decls
  Add bta/sys/bta_sys::BtaIdSysText()
  Re-log parts of btif/src/btif_storage
  Re-log parts of btif/src/btif_sock_thread
  Re-log btif/src/btif_sock_rfc::btsock_rfc_listen