Add missing header files to GN files (3 of N)

third_party/boringssl/BUILD.generated_tests.gni

 # Copyright (c) 2016 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # This file is created by generate_build_files.py. Do not edit manually.
 
 test_support_sources = [
   "src/crypto/test/file_test.cc",
   "src/crypto/test/file_test.h",
   "src/crypto/test/malloc.cc",
+  "src/crypto/test/malloc.h",
   "src/crypto/test/test_util.cc",
   "src/crypto/test/test_util.h",
   "src/ssl/test/async_bio.h",
   "src/ssl/test/packeted_bio.h",
   "src/ssl/test/test_config.h",
 ]
 
 crypto_test_sources = [
   "src/crypto/asn1/asn1_test.cc",
   "src/crypto/bio/bio_test.cc",
@@ skipping 442 matching lines @@
       ":boringssl_pool_test",
       ":boringssl_refcount_test",
       ":boringssl_spake25519_test",
       ":boringssl_tab_test",
       ":boringssl_thread_test",
       ":boringssl_v3name_test",
       ":boringssl_x509_test",
     ]
   }
 }