The bit position mask was accidentally made too wide, overlapping with the LSB
from the byte position mask. This caused ECC calculation to fail for odd bytes
Signed-off-by: Chad Monroe <chad.monroe@smartrg.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
(cherry-picked from commit 918d4ab41ea34358c747aab5471bbb0a2a786dd8)