staging: wilc1000: fix line over 80 chars in change_station()

Fix 'line over 80 chars' issue found by checkpatch.pl script.
Signed-off-by: NAjay Singh <ajay.kathat@microchip.com>
Reviewed-by: NClaudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>