[dvsim] Enable coverage collection with Xcelium

- Enabled coverage collection with Xcelium
  - Added Xcelium too opts
  - Made fixes in SimCfg class to add support for it
  - Fixed coverage 'bug' caught by Xceluim in `tl_agent_cov`

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Signed-off-by: Srikrishna Iyer <sriyer@google.com>
diff --git a/util/dvsim/dvsim.py b/util/dvsim/dvsim.py
index b832fc8..93d8082 100755
--- a/util/dvsim/dvsim.py
+++ b/util/dvsim/dvsim.py
@@ -491,6 +491,7 @@
     # tool.
     if args.cov_analyze:
         cfg.cov_analyze()
+        cfg.deploy_objects()
         sys.exit(0)
 
     # Purge the scratch path if --purge option is set.