davinci: Fix typo in dm355_ccdvc.c

Correct spelling "thresold" to "threshold" in
drivers/media/video/davinci/dm355_ccdc.c

Signed-off-by: Masanari Iida <[e-mail]>
Signed-off-by: Jiri Kosina <[e-mail]>

drivers/media/video/davinci/dm355_ccdc.c

···
 	if ((ccdcparam->med_filt_thres < 0) ||
 	   (ccdcparam->med_filt_thres > CCDC_MED_FILT_THRESH)) {
 		dev_dbg(ccdc_cfg.dev,
-			"Invalid value of median filter thresold\n");
+			"Invalid value of median filter threshold\n");
 		return -EINVAL;
 	}