[PATCH v3] at91: remove MTD_NAND_ATMEL_BUSWIDTH_16 option

[Andrew Victor]

hi,

> no board configure it as 'n' and it's an issue to merge all defconfigs
> in one
>
> On AT91SAM926x boards both types of NAND flash can be present
> (8 and 16 bit data bus width).
>
> so will pass it via system_rev

If nobody is using the configuration option and therefore 8-bit flash,
why not just remove the whole configuration option?
If there is some non-merged board with 8-bit flash, then they should
have their own board-file anyway and can just set
"ek_nand_data.bus_width_16" as required.

Lets not add complex run-time configuration where it's not needed.

Regards,
 Andrew Victor