[dv] Fix Xcelium toggle collection

We only need toggle coverage at port level, add back 2 lines removed at #12400
Signed-off-by: Weicai Yang <weicai@google.com>
diff --git a/hw/dv/tools/xcelium/cover.ccf b/hw/dv/tools/xcelium/cover.ccf
index f5b7e6e..1e8adee 100644
--- a/hw/dv/tools/xcelium/cover.ccf
+++ b/hw/dv/tools/xcelium/cover.ccf
@@ -27,7 +27,8 @@
 deselect_coverage -betf -module *csr_assert_fpv...
 
 // Only collect toggle coverage on the DUT and the black-boxed IP (above) ports.
-
+deselect_coverage -toggle -module ${DUT_TOP}...
+select_coverage -toggle -module ${DUT_TOP}
 
 select_coverage -toggle -module prim_alert_sender
 select_coverage -toggle -module prim_alert_receiver