ASoC: Correct revision display for WM1250-EV1 module

The hardware documentation uses revision numbers starting at 1.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/codecs/wm1250-ev1.c

@@ -74,7 +74,7 @@ static int __devinit wm1250_ev1_probe(struct i2c_client *i2c,
 		return -ENODEV;
 	}
 
-	dev_info(&i2c->dev, "revision %d\n", rev);
+	dev_info(&i2c->dev, "revision %d\n", rev + 1);
 
 	return snd_soc_register_codec(&i2c->dev, &soc_codec_dev_wm1250_ev1,
 				      &wm1250_ev1_dai, 1);