Fix DIR-620D1 flash size. Signed-off-by: Serge Vasilugin <vasilugin@yandex.ru> SVN-Revision: 36558
Signed-off-by: Serge Vasilugin <vasilugin@yandex.ru> Acked-by: John Crispin <blogic@openwrt.org> SVN-Revision: 36432