fix argc check

tools/uimage-extract.c

@@ -396,7 +396,7 @@ int main(int argc, char **argv)
 	char *data;
 	FILE *fp;
 
-	if (argc != 1) {
+	if (argc != 2) {
 		fprintf(stderr, "No uImage filename given.\n");
 		exit(1);
 	}