*Flash_erase -j should fill discrete freeoob areas with required bytes
of JFFS2 cleanmarker in jffs2_check_nand_cleanmarker(). Not just fill
the first freeoob area.
(From OE-Core rev: c8e3fe46df84e782cc1becc4c5a8cd954ef85f34)
Signed-off-by: Chunrong Guo <b40290@freescale.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>