This target enforces metadata check so add the necessary information. It
was previously removed because md5 sum check. When using these sysupgrade
images on ar71xx target the check would complain about them not matching.
Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
(cherry picked from commit 077d06a1a5)
4e93d17f2a