ARM: dts: s5pv210: Use macros for pinctrl configuration

Usage of DTS macros instead of hard-coded numbers makes code easier
to read.  One does not have to remember which value means pull-up/down
or specific driver strength.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>

arch/arm/boot/dts/s5pv210-aquila.dts

@@ -387,7 +387,7 @@ timing0: timing {
 &pinctrl0 {
 	t_flash_detect: t-flash-detect {
 		samsung,pins = "gph3-4";
-		samsung,pin-function = <0>;
-		samsung,pin-pud = <0>;
+		samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
+		samsung,pin-pud = <S3C64XX_PIN_PULL_NONE>;
 	};
 };