S5P: Exynos: Config: Enable GPIO CMD config

Enabling configs for GPIO CMD, EXYNOS4 family and replacing
exynos_gpio_get with new linear GPIO pin number required
because of the new function asking only 2 arguments (pin
and value) instead of 3 (bank, pin and value).

Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Acked-by: Przemyslaw Marczak <p.marczak@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
diff --git a/include/configs/smdkv310.h b/include/configs/smdkv310.h
index 1388f49..34adfaf 100644
--- a/include/configs/smdkv310.h
+++ b/include/configs/smdkv310.h
@@ -12,6 +12,7 @@
 /* High Level Configuration Options */
 #define CONFIG_SAMSUNG			1	/* in a SAMSUNG core */
 #define CONFIG_S5P			1	/* S5P Family */
+#define CONFIG_EXYNOS4				/* EXYNOS4 Family */
 #define CONFIG_EXYNOS4210		1	/* which is a EXYNOS4210 SoC */
 #define CONFIG_SMDKV310			1	/* working with SMDKV310*/