ARM: dts: at91: at91sam9263: fix NAND chip selects

NAND did not work on my USB-A9263. I discovered that the offending
commit converted the PIO bank for chip selects wrongly, so all A9263
boards need to be fixed.

Fixes: 1004a297 ("ARM: dts: at91: Switch to the new NAND bindings")
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20250402210446.5972-2-wsa+renesas@sang-engineering.com


Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>