switch to host, primary, or over-arching as appropriate

Signed-off-by: Scott Johnson <scottdj@google.com>
diff --git a/util/dvsim/SynCfg.py b/util/dvsim/SynCfg.py
index 4a6991c..53473da 100644
--- a/util/dvsim/SynCfg.py
+++ b/util/dvsim/SynCfg.py
@@ -119,7 +119,7 @@
         #     }
         # }
         #
-        # note that if this is a master config, the results will
+        # note that if this is a primary config, the results will
         # be generated using the _gen_results_summary function
         # '''