mkfs.jffs2: Remove Incorrect Find Optimization

mkfs.jffs2: Remove Incorrect Find Optimization

Remove performance optimization in find_filesystem_entry that prevented
the successful simultaneous use of --root and --devtable where the
latter is only used to fix-up permissions and ownership and to create
device nodes.

As it stood, the performance optimization prevented a successful find
where directory recursion was required or where the file being searched
for had any mode permission bits set.

See http://lists.infradead.org/pipermail/linux-mtd/2008-June/021997.html
for additional information.

Signed-off-by: Grant Erickson <gerickson@nuovations.com>
Signed-off-by: Josh Boyer <jwboyer@vader.jdub.homelinux.org>