UBI: fix printk

Add proper log level to printk's.
Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com>

drivers/mtd/ubi/build.c

@@ -696,8 +696,8 @@ static int __init ubi_init(void)
 	BUILD_BUG_ON(sizeof(struct ubi_vid_hdr) != 64);
 
 	if (mtd_devs > UBI_MAX_DEVICES) {
-		printk("UBI error: too many MTD devices, maximum is %d\n",
-		       UBI_MAX_DEVICES);
+		printk(KERN_ERR "UBI error: too many MTD devices, "
+		       "maximum is %d\n", UBI_MAX_DEVICES);
 		return -EINVAL;
 	}
 
@@ -776,7 +776,8 @@ static int __init bytes_str_to_int(const char *str)
 
 	result = simple_strtoul(str, &endp, 0);
 	if (str == endp || result < 0) {
-		printk("UBI error: incorrect bytes count: \"%s\"\n", str);
+		printk(KERN_ERR "UBI error: incorrect bytes count: \"%s\"\n",
+		       str);
 		return -EINVAL;
 	}
 
@@ -794,7 +795,8 @@ static int __init bytes_str_to_int(const char *str)
 	case '\0':
 		break;
 	default:
-		printk("UBI error: incorrect bytes count: \"%s\"\n", str);
+		printk(KERN_ERR "UBI error: incorrect bytes count: \"%s\"\n",
+		       str);
 		return -EINVAL;
 	}
 
@@ -821,20 +823,21 @@ static int __init ubi_mtd_param_parse(const char *val, struct kernel_param *kp)
 		return -EINVAL;
 
 	if (mtd_devs == UBI_MAX_DEVICES) {
-		printk("UBI error: too many parameters, max. is %d\n",
+		printk(KERN_ERR "UBI error: too many parameters, max. is %d\n",
 		       UBI_MAX_DEVICES);
 		return -EINVAL;
 	}
 
 	len = strnlen(val, MTD_PARAM_LEN_MAX);
 	if (len == MTD_PARAM_LEN_MAX) {
-		printk("UBI error: parameter \"%s\" is too long, max. is %d\n",
-		       val, MTD_PARAM_LEN_MAX);
+		printk(KERN_ERR "UBI error: parameter \"%s\" is too long, "
+		       "max. is %d\n", val, MTD_PARAM_LEN_MAX);
 		return -EINVAL;
 	}
 
 	if (len == 0) {
-		printk("UBI warning: empty 'mtd=' parameter - ignored\n");
+		printk(KERN_WARNING "UBI warning: empty 'mtd=' parameter - "
+		       "ignored\n");
 		return 0;
 	}
 
@@ -848,7 +851,8 @@ static int __init ubi_mtd_param_parse(const char *val, struct kernel_param *kp)
 		tokens[i] = strsep(&pbuf, ",");
 
 	if (pbuf) {
-		printk("UBI error: too many arguments at \"%s\"\n", val);
+		printk(KERN_ERR "UBI error: too many arguments at \"%s\"\n",
+		       val);
 		return -EINVAL;
 	}