V4L/DVB: cx18-alsa: fix codingstyle issue

Address coding style issue with cx18-alsa-main.c

This work was sponsored by ONELAN Limited.
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/cx18/cx18-alsa-mixer.c

@@ -92,7 +92,7 @@ static int snd_cx18_mixer_tv_vol_info(struct snd_kcontrol *kcontrol,
 	uinfo->count = 1;
 	/* We're already translating values, just keep this control in dB */
 	uinfo->value.integer.min  = -96;
-	uinfo->value.integer.max  =  +8;
+	uinfo->value.integer.max  =   8;
 	uinfo->value.integer.step =   1;
 	return 0;
 }