gpio: fix spelling mistake in Kconfig "supprot" -> "support"

There is a spelling mistake in the Kconfig help text. Fix it.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>

drivers/gpio/Kconfig

@@ -670,7 +670,7 @@ config GPIO_WCD934X
 	tristate "Qualcomm Technologies Inc WCD9340/WCD9341 gpio controller driver"
 	depends on MFD_WCD934X && OF_GPIO
 	help
-         This driver is to supprot GPIO block found on the Qualcomm Technologies
+         This driver is to support GPIO block found on the Qualcomm Technologies
 	 Inc WCD9340/WCD9341 Audio Codec.
 
 config GPIO_XGENE