rfkill: Avoid error when state restore is disabled

When the state restore is disabled, we would print:
"Unknown verb: load" instead of simply skipping loading the
state.

src/rfkill/rfkill.c

@@ -95,9 +95,12 @@ int main(int argc, char *argv[]) {
                 return EXIT_FAILURE;
         }
 
-        if (streq(argv[1], "load") && shall_restore_state()) {
+        if (streq(argv[1], "load")) {
                 _cleanup_free_ char *value = NULL;
 
+                if (!shall_restore_state())
+                        return EXIT_SUCCESS;
+
                 r = read_one_line_file(saved, &value);
                 if (r < 0) {