AM335x NAND write hungs

[Alexander Shiyan]

Hello.

I recently upgraded my barebox from 2020.11 to 2021.01 for a custom board
based on TI AM335x processor.
The update revealed the inoperability of writing to NAND. When trying to write,
the bootloader hangs forever.
Reverting the commit "mtd: nand: omap_gpmc: Fix wrong length check" helps
to solve the problem.
Does anyone have similar problems?

Thanks!