x86: test SMEP/SMAP/PKU by default on access.flat

The "-cpu qemu64" option does not enable newer x86 features.  Add them
through extra_params.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1505511453-37677-1-git-send-email-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/x86/unittests.cfg b/x86/unittests.cfg
index 2117438..cafba45 100644
--- a/x86/unittests.cfg
+++ b/x86/unittests.cfg
@@ -111,6 +111,7 @@
 [access]
 file = access.flat
 arch = x86_64
+extra_params = -cpu host
 
 [smap]
 file = smap.flat