UBIFS: switch to ubifs_leb_read

Instead of using 'ubi_read()' function directly, used the 'ubifs_leb_read()'
helper function instead. This allows to get rid of several redundant error
messages and make sure that we always have a stack dump on read errors.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
diff --git a/fs/ubifs/replay.c b/fs/ubifs/replay.c
index 5e97161..ccabaf1 100644
--- a/fs/ubifs/replay.c
+++ b/fs/ubifs/replay.c
@@ -523,8 +523,7 @@
 	if (!list_is_last(&next->list, &jh->buds_list))
 		return 0;
 
-	err = ubi_read(c->ubi, next->lnum, (char *)&data,
-		       next->start, 4);
+	err = ubifs_leb_read(c, next->lnum, (char *)&data, next->start, 4, 1);
 	if (err)
 		return 0;