read_page() need to return maximum number of bitflips instead of the
accumulated number. Change takes from upstream mt7621 u-boot [1].
* @read_page: function to read a page according to the ECC generator
* requirements; returns maximum number of bitflips
* corrected in any single ECC step, -EIO hw error
[1] https://lore.kernel.org/all/cover.1653015383.git.weijie.gao@mediatek.com/
Signed-off-by: Shiji Yang <yangshiji66@qq.com>
(cherry picked from commit 2fbb91d73f)
80fbad19ef