Input: gamecon - reference correct input device in NES mode

We moved input devices from 'struct gc' to individial pads (struct
gc-pad), but gc_nes_process_packet() was still trying to use old
ones and crashing.

Cc: [e-mail]
Signed-off-by: Dmitry Torokhov <[e-mail]>

drivers/input/joystick/gamecon.c

···
 struct gc {
 	struct pardevice *pd;
 	struct gc_pad pads[GC_MAX_DEVICES];
-	struct input_dev *dev[GC_MAX_DEVICES];
 	struct timer_list timer;
 	int pad_count[GC_MAX];
 	int used;
···
 	for (i = 0; i < GC_MAX_DEVICES; i++) {
 
 		pad = &gc->pads[i];
-		dev = gc->dev[i];
+		dev = pad->dev;
 		s = gc_status_bit[i];
 
 		switch (pad->type) {