[MIPS] Add remaining parts for building tests for MIPS

tests/manifest_file/nacl.scons

Index: tests/manifest_file/nacl.scons
diff --git a/tests/manifest_file/nacl.scons b/tests/manifest_file/nacl.scons
index fab70433a7b4f93a4f4a9b1b5f91937d397f551d..23b2537a3331ade1bd0385900f67be99a4ae3c51 100644
--- a/tests/manifest_file/nacl.scons
+++ b/tests/manifest_file/nacl.scons
@@ -33,6 +33,11 @@ node = env.SelUniversalTest(
                          env.File('srpc_manifest_file_test.stdin')],
     stdout_golden=env.File('srpc_manifest_file_test.stdout'),
     )
+
+# TODO(petarj): The test hangs indefinite on QEMU. Enable the test when fixed.
+
 env.AddNodeToTestSuite(node,
                        ['small_tests'],
-                       'run_srpc_manifest_file_test')
+                       'run_srpc_manifest_file_test',
+                       is_broken=env.Bit('build_mips32')
+                       and env.UsingEmulator())