spi: Use SPI_MODE_X_MASK

Use SPI_MODE_X_MASK instead of open coded variant.

While at it, fix format specifier and drop explicit casting.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210510131217.49357-1-andriy.shevchenko@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/spi/spi.c

@@ -3441,8 +3441,8 @@ int spi_setup(struct spi_device *spi)
 		spi_set_thread_rt(spi->controller);
 	}
 
-	dev_dbg(&spi->dev, "setup mode %d, %s%s%s%s%u bits/w, %u Hz max --> %d\n",
-			(int) (spi->mode & (SPI_CPOL | SPI_CPHA)),
+	dev_dbg(&spi->dev, "setup mode %lu, %s%s%s%s%u bits/w, %u Hz max --> %d\n",
+			spi->mode & SPI_MODE_X_MASK,
 			(spi->mode & SPI_CS_HIGH) ? "cs_high, " : "",
 			(spi->mode & SPI_LSB_FIRST) ? "lsb, " : "",
 			(spi->mode & SPI_3WIRE) ? "3wire, " : "",