Up the default timeout.

30 was chosen back when asserts() were still being compiled out. It's
far too short for some of the math tests.

Change-Id: I41ada11247bbfd7173a9b43dbe98a6d60bb19755

test/lit.cfg

@@ -320,7 +320,7 @@ if getattr(config, 'android', False):
         config.crtbegin,
         config.crtend,
         getattr(config, 'device_dir', '/data/local/tmp/'),
-        getattr(config, 'timeout', '30'))
+        getattr(config, 'timeout', '60'))
 else:
     # Gather various compiler parameters.
     cxx_under_test = lit_config.params.get('cxx_under_test', None)