drivers/gpio/mxc: fix MXC GPIO name in KConfig

The naming with "UART" is obviously wrong, we fix this here.

Signed-off-by: Hannes Schmelzer <oe5hpm@oevsv.at>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>

drivers/gpio/Kconfig

@@ -109,7 +109,7 @@ config MSM_GPIO
 	  - MSM8916
 
 config MXC_GPIO
-	bool "Freescale/NXP MXC UART driver"
+	bool "Freescale/NXP MXC GPIO driver"
 	help
 	  Support GPIO controllers on various i.MX platforms