hwmon: (lm70) Use SPI_MODE_X_MASK

Use SPI_MODE_X_MASK instead of open coded variant.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210510141331.56736-1-andriy.shevchenko@linux.intel.comSigned-off-by: Guenter Roeck <linux@roeck-us.net>

drivers/hwmon/lm70.c

@@ -161,7 +161,7 @@ static int lm70_probe(struct spi_device *spi)
 
 
 	/* signaling is SPI_MODE_0 */
-	if (spi->mode & (SPI_CPOL | SPI_CPHA))
+	if ((spi->mode & SPI_MODE_X_MASK) != SPI_MODE_0)
 		return -EINVAL;
 
 	/* NOTE:  we assume 8-bit words, and convert to 16 bits manually */