soc: hisilicon: kunpeng_hccs: Fix incorrect log information

The hccs_get_all_spec_port_idle_sta() will tell user which port
is busy when firmware doesn't allow to decrease HCCS lane number.
However, the current log prints the index of die and port instead
of the hardware ID user perceived.

Signed-off-by: Huisong Li <lihuisong@huawei.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>