spi: atmel-quadspi: Move common code outside of if else

QSPI_IFR is set as the last QSPI Instruction Frame register
regardless of the sama5d2 or sam9x60 version of the IP. Move
the writing of QSPI_IFR outside of the IP specific code.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20201207135959.154124-5-tudor.ambarus@microchip.comSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/spi/atmel-quadspi.c

@@ -394,15 +394,15 @@ static int atmel_qspi_set_cfg(struct atmel_qspi *aq,
 			atmel_qspi_write(icr, aq, QSPI_RICR);
 		else
 			atmel_qspi_write(icr, aq, QSPI_WICR);
-		atmel_qspi_write(ifr, aq, QSPI_IFR);
 	} else {
 		if (op->data.nbytes && op->data.dir == SPI_MEM_DATA_OUT)
 			ifr |= QSPI_IFR_SAMA5D2_WRITE_TRSFR;
 
 		atmel_qspi_write(icr, aq, QSPI_ICR);
-		atmel_qspi_write(ifr, aq, QSPI_IFR);
 	}
 
+	atmel_qspi_write(ifr, aq, QSPI_IFR);
+
 	return 0;
 }