fs: fs_devread should log error when read outside partition

Log the error if fs_devread() fails when trying to reading outside
partition. This will make bug reporting easier.

Signed-off-by: Tony Dinh <mibodhi@gmail.com>

fs/fs_internal.c

@@ -28,7 +28,7 @@ int fs_devread(struct blk_desc *blk, struct disk_partition *partition,
 	/* Check partition boundaries */
 	if ((sector + ((byte_offset + byte_len - 1) >> log2blksz))
 	    >= partition->size) {
-		log_debug("read outside partition " LBAFU "\n", sector);
+		log_err("** Read outside partition " LBAFU "\n", sector);
 		return 0;
 	}