- for tx setup, we need to do some stuff for only one port and
  we need to do other stuff when all ports are calibrated, yet
  we need to know this global information when executing on a
  port.
- Added structure to the hal_ports_t that is pointed to from
  each port that supports LPDC. This structure is then updated
  and checked.
- use this stucture to do the following:
  * execute update of _pll_state only when hal_port_fsm_tx is
    executed on the first port that supports LPDC (it does not
    need to be port with index 0)
  * execute writing configuration file when all LPDC-supporting
    port has finished the tx_setup