[MIPS] Make validator allow only two load patterns via $t8

src/trusted/validator_mips/build.scons

 # -*- python -*-
 # Copyright (c) 2012 The Native Client Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import os
 Import('env')
 
 if env.Bit('linux'):
 
@@ skipping 79 matching lines @@
   validator_tests = {
     'test_forbidden_instructions': 1,
     'test_sp_updates': 1,
     'test_stores': 1,
     'test_loads': 1,
     'test_jmp_reg': 1,
     'test_jmp_imm': 1,
     'test_read_only_regs': 1,
     'test_invalid_dest': 1,
     'test_unpredicted': 1,
+    'test_tp_access': 1,
   }
 
   if env.Bit('build_mips32'):
     for test, exit_status in validator_tests.iteritems():
       if test == 'test_invalid_dest':
         text_section_start = '-Wl,--section-start,.text=0x0FFFA000'
       else:
         text_section_start = '-Wl,--section-start,.text=0x00020000'
       nexe = env.ComponentProgram(
           'testdata/%s.nexe' % test,
@@ skipping 15 matching lines @@
   # a program of the same name.
   validator_tests_exe = gtest_env.ComponentProgram('mips_validator_tests',
                                  ['validator_tests.cc'],
                                  EXTRA_LIBS=['mips_validator_core'])
 
   test_node = gtest_env.CommandTest(
       'mips_validator_tests.out',
       command=[validator_tests_exe])
   gtest_env.AddNodeToTestSuite(test_node, ['small_tests'],
       'run_mips_validator_tests')