ARM: EXYNOS: Enable pinctrl driver support for EXYNOS4 device tree enabled platform

This enables support for Samsung and EXYNOS4 pinctrl driver for device
tree enabled EXYNOS4 platforms.
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

arch/arm/mach-exynos/Kconfig

@@ -405,6 +405,8 @@ config MACH_EXYNOS4_DT
 	select USE_OF
 	select ARM_AMBA
 	select HAVE_SAMSUNG_KEYPAD if INPUT_KEYBOARD
+	select PINCTRL
+	select PINCTRL_EXYNOS4
 	help
 	  Machine support for Samsung Exynos4 machine with device tree enabled.
 	  Select this if a fdt blob is available for the Exynos4 SoC based board.