Revert "sama5d3: Fix Galois Field Table offsets"

This reverts commit 786f888b.

Looks like the datasheet at
https://ww1.microchip.com/downloads/en/DeviceDoc/SAMA5D3-Series-Data-sheet-DS60001609b.pdf


is wrong, and the testing was poorly done, because the PMECC did not raise
any error, but also didn't correct any bitflips. Restoring the offsets
as they were before, makes the PMECC on sama5d3x capable of correcting
bitflips.

Fixes: 786f888b ("sama5d3: Fix Galois Field Table offsets")
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>