[MIPS] Add remaining parts for building tests for MIPS

tests/srpc_hw/nacl.scons

Index: tests/srpc_hw/nacl.scons
diff --git a/tests/srpc_hw/nacl.scons b/tests/srpc_hw/nacl.scons
index a6553cff769c4345c5c38b3a8d6fe880e540c32d..e7942b4857630d9286c5b01a1a76df826a143c29 100644
--- a/tests/srpc_hw/nacl.scons
+++ b/tests/srpc_hw/nacl.scons
@@ -30,6 +30,11 @@ node = env.SelUniversalTest(
     sel_universal_flags=['--command_file', env.File('srpc_hw_test.stdin')],
     stdout_golden=env.File('srpc_hw_test.stdout'),
     )
+
+# TODO(petarj): The test hangs indefinite on QEMU. Enable it when fixed.
+
 env.AddNodeToTestSuite(node,
                        ['small_tests'],
-                       'run_srpc_hw_test')
+                       'run_srpc_hw_test',
+                       is_broken=env.Bit('build_mips32')
+                       and env.UsingEmulator())