dm: exynos: Make sure that GPIOs are requested

With driver model GPIOs must be requested before use. Make sure this is
done correctly.

(Note that the soft SPI part of universal is omitted, since this driver
is about to be replaced with a driver-model-aware version)

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/board/samsung/goni/goni.c b/board/samsung/goni/goni.c
index 4cee78b..58cf96e 100644
--- a/board/samsung/goni/goni.c
+++ b/board/samsung/goni/goni.c
@@ -90,6 +90,7 @@
 	int i, ret, ret_sd = 0;
 
 	/* MASSMEMORY_EN: XMSMDATA7: GPJ2[7] output high */
+	gpio_request(S5PC110_GPIO_J27, "massmemory_en");
 	gpio_direction_output(S5PC110_GPIO_J27, 1);
 
 	/*
@@ -118,6 +119,7 @@
 	 * SD card (T_FLASH) detect and init
 	 * T_FLASH_DETECT: EINT28: GPH3[4] input mode
 	 */
+	gpio_request(S5PC110_GPIO_H34, "t_flash_detect");
 	gpio_cfg_pin(S5PC110_GPIO_H34, S5P_GPIO_INPUT);
 	gpio_set_pull(S5PC110_GPIO_H34, S5P_GPIO_PULL_UP);