tests: configure 32 mb physmem

Absolutely nothing good happens when we force the kernel to briefly
map and then unmap 16gb as vpp starts. Effect exacerbated when
TEST_JOBS = 20...40, and so forth.

Type: test

Signed-off-by: Dave Barach <dave@barachs.net>
Change-Id: Id8e3ce1763cad3a0891d5d6c8d2c1e3e610682d7
diff --git a/test/test_vlib.py b/test/test_vlib.py
index 33dc602..82cf6ab 100644
--- a/test/test_vlib.py
+++ b/test/test_vlib.py
@@ -24,8 +24,7 @@
     def tearDown(self):
         super(TestVlib, self).tearDown()
 
-    # @unittest.skipUnless(running_extended_tests, "part of extended tests")
-
+    @unittest.skipUnless(running_extended_tests, "part of extended tests")
     def test_vlib_main_unittest(self):
         """ Vlib main.c Code Coverage Test """