exynos: Correct return value in exynos_mmc_init()

This function should return 0 on success, not 1. Fix it.

Signed-off-by: Simon Glass <sjg@chromium.org>

drivers/mmc/s5p_sdhci.c

@@ -202,6 +202,6 @@ int exynos_mmc_init(const void *blob)
 
 	process_nodes(blob, node_list, count);
 
-	return 1;
+	return 0;
 }
 #endif