Add default Windows manifest to four .gn executables

src/trusted/validator/driver/BUILD.gn

 # Copyright (c) 2014 The Native ClientAuthors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 #  Autogenerated from src/trusted/validator/driver/build.scons.
 
 static_library("elf_load") {
   sources = [
     "elf_load.cc",
   ]
 
   deps = [
     "//build/config/nacl:nacl_base",
     "//native_client/src/shared/platform:platform",
   ]
 }
 executable("ncval_new") {
   sources = [
     "ncval.cc",
   ]
 
   deps = [
     "//build/config/nacl:nacl_base",
+    "//build/win:default_exe_manifest",
     ":elf_load",
     "//native_client/src/shared/platform:platform",
     "//native_client/src/trusted/cpu_features:cpu_features",
     "//native_client/src/trusted/validator_arm:arm_validator_core",
     "//native_client/src/trusted/validator_arm:arm_validator_reporters",
     "//native_client/src/trusted/validator_ragel:rdfa_validator",
   ]
 }