[S390] partitions: fix build error in ibm partition detection code

9c867fb "partitions: fix sometimes unreadable partition strings" coverted
one line within the ibm partition code incorrectly. Fix this to get rid of
a build error.

fs/partitions/ibm.c: In function 'ibm_partition':
[...]
fs/partitions/ibm.c:185: error: too many arguments to function 'strlcat'

Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

fs/partitions/ibm.c

@@ -182,7 +182,7 @@ int ibm_partition(struct parsed_partitions *state)
 				offset = (info->label_block + 1);
 			} else {
 				/* unlabeled disk */
-				strlcat(tmp, sizeof(tmp), "(nonl)", PAGE_SIZE);
+				strlcat(state->pp_buf, "(nonl)", PAGE_SIZE);
 				size = i_size >> 9;
 				offset = (info->label_block + 1);
 			}