gpio: Fix typo in comment in Samsung driver

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
diff --git a/drivers/gpio/gpio-samsung.c b/drivers/gpio/gpio-samsung.c
index 42bb1cd..f9b1279 100644
--- a/drivers/gpio/gpio-samsung.c
+++ b/drivers/gpio/gpio-samsung.c
@@ -230,7 +230,7 @@
  * @chip: The gpio chip that is being configured.
  * @off: The offset for the GPIO being configured.
  *
- * The reverse of samsung_gpio_setcfg_2bit(). Will return a value whicg
+ * The reverse of samsung_gpio_setcfg_2bit(). Will return a value which
  * could be directly passed back to samsung_gpio_setcfg_2bit(), from the
  * S3C_GPIO_SPECIAL() macro.
  */