V4L/DVB (8933): gspca: Disable light frquency for zc3xx cs2102 Kokom.

CS2102K stop streaming on setlightfreq (50Hz & 60Hz).
Disable it for now until a correct solution is found.
Signed-off-by: Costantino Leandro <le_costantino@pixartargentina.com.ar>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/gspca/zc3xx.c

@@ -6576,8 +6576,8 @@ static int setlightfreq(struct gspca_dev *gspca_dev)
 		 cs2102_60HZ, cs2102_60HZScale},
 /* SENSOR_CS2102K 1 */
 		{cs2102_NoFliker, cs2102_NoFlikerScale,
-		 cs2102_50HZ, cs2102_50HZScale,
-		 cs2102_60HZ, cs2102_60HZScale},
+		 NULL, NULL, /* currently disabled */
+		 NULL, NULL},
 /* SENSOR_GC0305 2 */
 		{gc0305_NoFliker, gc0305_NoFliker,
 		 gc0305_50HZ, gc0305_50HZ,