The introduction of ixgbe_get_bus_info_X550em failed to call the
set_lan_id method to set the func and lan_id and deal with port-
swapped configurations. Add the call to resolve the problem.
Fixes: 4cf0bb32a912 ("ixgbe/base: get X550 bus info")
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com> Acked-by: Helin Zhang <helin.zhang@intel.com>