LE Audio dumpsys: cleanup booleans representation

void LeAudioDevice::Dump(int fd) {

  std::stringstream stream;

  stream << "        address: " << address_ << "\n"

         << (conn_id_ == GATT_INVALID_CONN_ID ? "          Not connected "

                                              : "          Connected conn_id =")

  stream << std::boolalpha;

  stream << "\taddress: " << address_

         << (conn_id_ == GATT_INVALID_CONN_ID ? "\n\t  Not connected "

                                              : "\n\t  Connected conn_id =")

         << (conn_id_ == GATT_INVALID_CONN_ID ? "" : std::to_string(conn_id_))

         << "\n"

         << "          set member: " << (csis_member_ ? " Yes" : " No") << "\n"

         << "          known_service_handles_: " << known_service_handles_

         << "\n"

         << "          notify_connected_after_read_: "

         << notify_connected_after_read_ << "\n"

         << "          removing_device_: " << removing_device_ << "\n"

         << "          first_connection_: " << first_connection_ << "\n"

         << "          encrypted_: " << encrypted_ << "\n"

         << "          connecting_actively_: " << connecting_actively_ << "\n";

         << "\n\t  set member: " << csis_member_

         << "\n\t  known_service_handles_: " << known_service_handles_

         << "\n\t  notify_connected_after_read_: " << notify_connected_after_read_

         << "\n\t  removing_device_: " << removing_device_

         << "\n\t  first_connection_: " << first_connection_

         << "\n\t  encrypted_: " << encrypted_

         << "\n\t  connecting_actively_: " << connecting_actively_

         << "\n";

  dprintf(fd, "%s", stream.str().c_str());

}