spi: bcm2835: fix typo in comment

GPIOS_OUT_LOW should be GPIOD_OUT_LOW.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Link: https://lore.kernel.org/r/20191105214134.25142-1-chris.packham@alliedtelesis.co.nzSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/spi/spi-bcm2835.c

@@ -1248,7 +1248,7 @@ static int bcm2835_spi_setup(struct spi_device *spi)
 	/*
 	 * Retrieve the corresponding GPIO line used for CS.
 	 * The inversion semantics will be handled by the GPIO core
-	 * code, so we pass GPIOS_OUT_LOW for "unasserted" and
+	 * code, so we pass GPIOD_OUT_LOW for "unasserted" and
 	 * the correct flag for inversion semantics. The SPI_CS_HIGH
 	 * on spi->mode cannot be checked for polarity in this case
 	 * as the flag use_gpio_descriptors enforces SPI_CS_HIGH.