ARM: mach-mx5/mx53_ard: Add gpio_keys support

Signed-off-by: Daiane Angolini <daiane.angolini@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
diff --git a/arch/arm/mach-mx5/Kconfig b/arch/arm/mach-mx5/Kconfig
index 6a47d4c..b4e7c58 100644
--- a/arch/arm/mach-mx5/Kconfig
+++ b/arch/arm/mach-mx5/Kconfig
@@ -216,6 +216,7 @@
 	select IMX_HAVE_PLATFORM_IMX_I2C
 	select IMX_HAVE_PLATFORM_IMX_UART
 	select IMX_HAVE_PLATFORM_SDHCI_ESDHC_IMX
+	select IMX_HAVE_PLATFORM_GPIO_KEYS
 	help
 	  Include support for MX53 ARD platform. This includes specific
 	  configurations for the board and its peripherals.