arm: exynos/goni: fix the return type for s5p_mmc_init

The "int" type is right.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
diff --git a/arch/arm/include/asm/arch-exynos/mmc.h b/arch/arm/include/asm/arch-exynos/mmc.h
index 98312d1..98d6530 100644
--- a/arch/arm/include/asm/arch-exynos/mmc.h
+++ b/arch/arm/include/asm/arch-exynos/mmc.h
@@ -55,7 +55,7 @@
 
 int s5p_sdhci_init(u32 regbase, int index, int bus_width);
 
-static inline unsigned int s5p_mmc_init(int index, int bus_width)
+static inline int s5p_mmc_init(int index, int bus_width)
 {
 	unsigned int base = samsung_get_base_mmc() +
 				(S5P_MMC_DEV_OFFSET * index);