Subzero: Fix a bug in cross test generation.

The attribute matching logic was wrong.  If you specify the exact set of attributes, i.e. for a single test, no match would be found due to the < instead of <= test.

BUG= none
R=jvoung@chromium.org

Review URL: https://codereview.chromium.org/1020473002
diff --git a/pydir/crosstest_generator.py b/pydir/crosstest_generator.py
index 3038f4c..945ad00 100755
--- a/pydir/crosstest_generator.py
+++ b/pydir/crosstest_generator.py
@@ -20,10 +20,10 @@
   Otherwise, the 'default_match' value is returned.
   """
   for exclude in excludes:
-    if exclude < desc:
+    if exclude <= desc:
       return False
   for include in includes:
-    if include < desc:
+    if include <= desc:
       return True
   return default_match