ice: use internal pf id instead of function number

ice: use internal pf id instead of function number

Use always the same pf id in devlink port number. When doing
pass-through the PF to VM bus info func number can be any value.

Fixes: 2ae0aa4758b0 ("ice: Move devlink port to PF/VF struct")
Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
Suggested-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>