ASoC: core - fix build warning on x86_64

Output size_t type as a "%Zu" to avoid warnings.
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>

sound/soc/soc-core.c

@@ -2916,7 +2916,7 @@ int snd_soc_register_dais(struct device *dev,
 	struct snd_soc_dai *dai;
 	int i, ret = 0;
 
-	dev_dbg(dev, "dai register %s #%d\n", dev_name(dev), count);
+	dev_dbg(dev, "dai register %s #%Zu\n", dev_name(dev), count);
 
 	for (i = 0; i < count; i++) {