[android] Add toolchain path logic to gyp config.

build/standalone.gypi

 # Copyright 2012 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 299 matching lines @@
               },
             },
           }],
         ],
       }],
     ],
   },
   'conditions': [
     ['os_posix==1 and OS!="mac"', {
       'target_defaults': {
-       'conditions': [
+        'conditions': [
           # Common options for AddressSanitizer, LeakSanitizer,
           # ThreadSanitizer and MemorySanitizer.
           ['asan==1 or lsan==1 or tsan==1 or msan==1', {
             'target_conditions': [
               ['_toolset=="target"', {
                 'cflags': [
                   '-fno-omit-frame-pointer',
                   '-gline-tables-only',
                 ],
                 'cflags!': [
@@ skipping 396 matching lines @@
     ['use_goma==1 and ("<(GENERATOR)"=="ninja" or clang==1)', {
       'make_global_settings': [
        ['CC_wrapper', '<(gomadir)/gomacc'],
        ['CXX_wrapper', '<(gomadir)/gomacc'],
        ['CC.host_wrapper', '<(gomadir)/gomacc'],
        ['CXX.host_wrapper', '<(gomadir)/gomacc'],
       ],
     }],
   ],
 }