ASoC: correct print specifiers for unsigneds

Unsigned variables should use `%u' rather than `%d'.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/codecs/wm8990.c b/sound/soc/codecs/wm8990.c
index 40cd274..d029818 100644
--- a/sound/soc/codecs/wm8990.c
+++ b/sound/soc/codecs/wm8990.c
@@ -998,7 +998,7 @@
 
 	if ((Ndiv < 6) || (Ndiv > 12))
 		printk(KERN_WARNING
-		"WM8990 N value outwith recommended range! N = %d\n", Ndiv);
+		"WM8990 N value outwith recommended range! N = %u\n", Ndiv);
 
 	pll_div->n = Ndiv;
 	Nmod = target % source;