[media] cpia2: fix warning about invalid trigraph sequence

Signed-off-by: Hans Petter Selasky <hselasky@c2i.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/cpia2/cpia2_v4l.c

@@ -438,7 +438,7 @@ static int cpia2_querycap(struct file *file, void *fh, struct v4l2_capability *v
 		strcat(vc->card, " (676/");
 		break;
 	default:
-		strcat(vc->card, " (???/");
+		strcat(vc->card, " (XXX/");
 		break;
 	}
 	switch (cam->params.version.sensor_flags) {
@@ -458,7 +458,7 @@ static int cpia2_querycap(struct file *file, void *fh, struct v4l2_capability *v
 		strcat(vc->card, "500)");
 		break;
 	default:
-		strcat(vc->card, "???)");
+		strcat(vc->card, "XXX)");
 		break;
 	}