Fix gn android component build

BUILD.gn

 # Copyright 2014 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.
 
 # TODO(jochen): These will need to be user-settable to support standalone V8
 # builds.
 v8_compress_startup_data = "off"
 v8_deprecation_warnings = false
 v8_enable_disassembler = false
 v8_enable_gdbjit = false
@@ skipping 1232 matching lines @@
       ":v8_nosnapshot",
     ]
   }
 
   configs -= [ "//build/config/compiler:chromium_code" ]
   configs += [ "//build/config/compiler:no_chromium_code" ]
   configs += [ ":internal_config", ":features", ":toolchain" ]
 
   direct_dependent_configs = [ ":external_config" ]
 
+  libs = []
   if (is_android && current_toolchain != host_toolchain) {
     libs += [ "log" ]
   }
 }
 
 } else {
 
 group("v8") {
   if (v8_use_external_startup_data) {
     deps = [
       ":v8_base",
       ":v8_external_snapshot",
     ]
   } else if (v8_use_snapshot) {
     deps = [
       ":v8_base",
       ":v8_snapshot",
     ]
   } else {
     deps = [
       ":v8_base",
       ":v8_nosnapshot",
     ]
   }
 
   direct_dependent_configs = [ ":external_config" ]
 }
 
 }