fuzzers: ignore size limits when compiled standalone

This way we can still call fuzzers on old samples, but oss-fuzz will not waste
its and our time finding overly large inputs.

src/boot/efi/fuzz-bcd.c

@@ -11,7 +11,7 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
         _cleanup_free_ void *p = NULL;
 
         /* This limit was borrowed from src/boot/efi/boot.c */
-        if (size > 100*1024)
+        if (outside_size_range(size, 0, 100*1024))
                 return 0;
 
         if (!getenv("SYSTEMD_LOG_LEVEL"))