Merge changes Ifaad8d92,I693758f4,Ice403b52,I9cf3f9dd,Ia0123bbc

* changes:
  Fragmenter: Remove unused include hci_layer.h
  ISO: Avoid BTE
  SCO: Use std::vector for rx data
  SCO: Remove BT_HDR for sending
  Move SCO handling out of the shim