mmc: add missing printk levels

Some printk:s were missing an explicit level.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index f606b66..21d7f48 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -100,7 +100,7 @@
 		break;
 
 	default:
-		printk("%s: card has unknown MMCA version %d\n",
+		printk(KERN_ERR "%s: card has unknown MMCA version %d\n",
 			mmc_hostname(card->host), card->csd.mmca_vsn);
 		return -EINVAL;
 	}
@@ -123,7 +123,7 @@
 	 */
 	csd_struct = UNSTUFF_BITS(resp, 126, 2);
 	if (csd_struct != 1 && csd_struct != 2) {
-		printk("%s: unrecognised CSD structure version %d\n",
+		printk(KERN_ERR "%s: unrecognised CSD structure version %d\n",
 			mmc_hostname(card->host), csd_struct);
 		return -EINVAL;
 	}