spi: atmel: Fix typo

Change 'actualy' to 'actually'
Signed-off-by: NQinghua Jin <qhjin.dev@gmail.com>
Link: https://lore.kernel.org/r/20220107024631.396862-1-qhjin.dev@gmail.comSigned-off-by: NMark Brown <broonie@kernel.org>

drivers/spi/spi-atmel.c

@@ -463,7 +463,7 @@ static int atmel_spi_dma_slave_config(struct atmel_spi *as, u8 bits_per_word)
 	 * However, the first data has to be written into the lowest 16 bits and
 	 * the second data into the highest 16 bits of the Transmit
 	 * Data Register. For 8bit data (the most frequent case), it would
-	 * require to rework tx_buf so each data would actualy fit 16 bits.
+	 * require to rework tx_buf so each data would actually fit 16 bits.
 	 * So we'd rather write only one data at the time. Hence the transmit
 	 * path works the same whether FIFOs are available (and enabled) or not.
 	 */