Make loadlist empty when booting Horizon, more nxboot.c code

fusee/fusee-secondary/src/fs_utils.c

@@ -1,8 +1,18 @@
 #include <stdio.h>
+#include <sys/stat.h>
 #include "fs_utils.h"
 #include "hwinit.h"
 #include "sdmmc.h"
 
+size_t get_file_size(const char *filename) {
+    struct stat st;
+    if (stat(filename, &st) == -1) {
+        return 0;
+    }
+
+    return (size_t)st.st_size;
+}
+
 size_t read_from_file(void *dst, size_t dst_size, const char *filename) {
     FILE *file = fopen(filename, "rb");
     if (file == NULL) {