mtd: nand: raw: atmel: Fix comment in timings preparation

Looks like a copy'n'paste mistake introduced when initially adding the
dynamic timings feature with commit f9ce2eddf176 ("mtd: nand: atmel: Add
->setup_data_interface() hooks").  The context around this and
especially the code itself suggests 'read' is meant instead of write.

Signed-off-by: Alexander Dahl <ada@thorsis.com>
Reviewed-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20240226122537.75097-1-ada@thorsis.com

drivers/mtd/nand/raw/atmel/nand-controller.c

@@ -1378,7 +1378,7 @@ static int atmel_smc_nand_prepare_smcconf(struct atmel_nand *nand,
 		return ret;
 
 	/*
-	 * The write cycle timing is directly matching tWC, but is also
+	 * The read cycle timing is directly matching tRC, but is also
 	 * dependent on the setup and hold timings we calculated earlier,
 	 * which gives:
 	 *