ARMV7: S5P: rename the member of gpio structure

Typically we declare the name of gpio structure to "gpio",
so it was duplicated around the name. (e.g: gpio->gpio_a)
This patch modified the naming that is removing "gpio_".

Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
diff --git a/board/samsung/goni/goni.c b/board/samsung/goni/goni.c
index 060d5d1..4336729 100644
--- a/board/samsung/goni/goni.c
+++ b/board/samsung/goni/goni.c
@@ -67,7 +67,7 @@
 	int i;
 
 	/* MASSMEMORY_EN: XMSMDATA7: GPJ2[7] output high */
-	gpio_direction_output(&s5pc110_gpio->gpio_j2, 7, 1);
+	gpio_direction_output(&s5pc110_gpio->j2, 7, 1);
 
 	/*
 	 * MMC0 GPIO
@@ -80,11 +80,11 @@
 		if (i == 2)
 			continue;
 		/* GPG0[0:6] special function 2 */
-		gpio_cfg_pin(&s5pc110_gpio->gpio_g0, i, 0x2);
+		gpio_cfg_pin(&s5pc110_gpio->g0, i, 0x2);
 		/* GPG0[0:6] pull disable */
-		gpio_set_pull(&s5pc110_gpio->gpio_g0, i, GPIO_PULL_NONE);
+		gpio_set_pull(&s5pc110_gpio->g0, i, GPIO_PULL_NONE);
 		/* GPG0[0:6] drv 4x */
-		gpio_set_drv(&s5pc110_gpio->gpio_g0, i, GPIO_DRV_4X);
+		gpio_set_drv(&s5pc110_gpio->g0, i, GPIO_DRV_4X);
 	}
 
 	return s5p_mmc_init(0);